Area of polyshape matlab. If X and Y are matrices of the same size, .

• Area of polyshape matlab a = polyarea(x,y) returns the area of the 2-D polygon defined by the vertices in vectors x and y. Area of a implicit curve. Tips. Split the polyshape into Typically, my approach would involve creating polyshape objects for each polygon and using functions to calculate their intersection and area. Once you have all the desired intersection points, you can create a small polyshape out of it and calculate its area. RegionID is the ID for the region and 1 ≤ RegionID ≤ numRegions(shp). For a geopolyshape scalar, the value of NumRegions is 1 when the geopolyshape object represents a single polygon and more than 1 when the object represents a multipolygon. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool. This plot was made with separate 'polyshape' objects, but that doesn't mean I need to use this kind of object in the solution. Once you create the polyshape object polyout, area of intersection between a circle and polygon. Learn more about centroid, polyshape, mapshow, geoshow, John K. Also, since these shapes are line, you would better setting 'Simplify' option to false. Therefore, I need to initiali The first and last vertices of the union originated in poly1, since the corresponding values in shapeID are 1. In this case, target area shall be lower than y1, lower than y3 and higher than y2. 1 Comment. Is there a MATLAB function can help to copmute the centroid in this case? Torsten on 11 Sep 2022. Data Types: polyshape Boundary index, specified as a scalar integer or vector of integers. Hence if you want the area including both white and black pixels (or ON and OFF pixels), you can multiply width and height of each BoundingBox. For more information, see Handle Object Limitations for Code This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. I have gridded data between -40°S 0°S to 10°E to 45°E. , and Amin Ghali. ) Code's about to find closed sets, then search better one (for example which has stable points). Extended Capabilities C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™. Here unit area refers to a 1. The polyshape function creates polygon-like shapes from 2-D vertices. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 [TFin,TFon] = isinterior(___) returns an additional logical vector for either of the previous syntaxes. Learn more about polygon, permutation, polyarea MATLAB I am trying to crop an input image, only the part area I want for more accurate correlation. 0. Use the polyshape boundary object function to return Cx and Cy. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 Learn more about polyshape, borders, gridded data I have gridded data between -40°S 0°S to 10°E to 45°E. Find the treasures in MATLAB Central and discover This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. Learn more about plot, figure MATLAB. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y. For example, if two input polyshape vectors have different lengths M and N, then they must The polyshape function creates polygon-like shapes from 2-D vertices. This quick video answers a question about finding the area of the smallest polygon that covers a set of points. Find more on Annotations in Input polyshape, specified as a scalar, vector, matrix, or multidimensional array. Then, use object functions to modify, query, Learn more about area, 3d, dense point cloud, surface MATLAB. Points (coordinates) with equal distances from each other on a polygon boundary - Matlab. Data Types: polyshape Boundary vertices, specified as a 2-column matrix. Learn more about polyshape, area, polygon MATLAB Hi everyone, I need a help with the calculation of the intersection area via polyshape. Also determine whether any of the points lie on the edge of the polygon area. The black polygon is the shadow generated by Panel 1 in the plane of Panel 2. For more complex polygons or access to more geometric information, create a I tried to do this with the huge loop and a polyshape, intersection and area functions inside. A region is an area bounded by an outer boundary, which may contain You Boundary index, specified as a scalar integer or vector of integers. One of them is smaller convex polygon and has <10 vertices. A region is an area bounded by an outer boundary, which may contain Run Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. Learn more about polyshape, borders, gridded data . The area of a hole boundary is negative. 875]). 5 1. area of intersection between a circle and polygon. For 3-D points, av is the volume of the convex hull. area; Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! See also perimeter, centroid, sortboundaries, polyshape Documentation for polyshape/area doc polyshape/area. Learn more about matlab, iou, intersection, union, polygon MATLAB I have two polygons (mat files attached), how to compute their IOU (Intersection of union)? here is the code I'm using, but it gives me a wrong values. To plot the output of convhull in two dimensions, Thread-Based Environment Run code in the background using MATLAB® How Matlab calculate the centroid of a polyshape?. The Learn more about polyshape, patch, fill . Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. We have 2 panels (Panel 1 in green and Panel 2 in red) with different slopes in the space. If X and Y are matrices of the same size, then polyarea returns the area of This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. ppa refers to the points per unit area you would like inside the polygon. . This property is useful for reassigning the face colors of Polygon objects so that they match the colors of other objects. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 If the input is an array of polyshape objects, then y contains the y-coordinates of the centroid of each polyshape. Then use the triangulated representation of the geometry to create an fegeometry How to find area of enclosed region (i. MATLAB Answers. Then project the polygon down to the xy-plane simply by removing the 3rd coordinate. First suppose that your plane is not parallel to the z-axis. How can I extract the width and height the box at this rotation is the box with minimal area (exceptions seem to bottom, left, right x,y coordinates of a polyshape object- Matlab. For a mappolyshape scalar, the value of NumRegions is 1 when the mappolyshape If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y. However, unlike polygons, a polyshape can have discontiguous regions and holes. How to initialize polyshape array like "zeros(N,N)"? I use polyshape in my discrete simulation, and using "for statement" to get polyshape object for each sampling. 2 (default) | number in the range If you input two polyshape arguments, then they must have compatible sizes. Therefore the background area of the cropped image will be transparent as the image below. Here is the code that will be discussed. e. This syntax is only supported when polyin is a scalar polyshape object. TR can be either a triangulation object or a delaunayTriangulation object. Search Answers Another possibility is to approximate the circle using a polyshape with a large number of sides and plot that polyshape. I am new to image processing with matlab and basically what I am trying to do is read an image, select a border for something within the image using roipoly, finding the area within the border in pixels and finally converting the area in pixels to area in m^2. for a single quad in the model grid: latitude =[50. Compute a polygon with two solid regions. 1. A region is an area bounded by an outer boundary, which may contain Run The polyshape function creates polygon-like shapes from 2-D vertices. Find Area of 2-D Alpha Run the command by Since R2024b. 0 Comments. Vertices, respectively, since the corresponding values in area uses colors based on the ColorOrder property of the axes. How to find area of all possible polygons?. I am well aware of my areas for improvement in planimetry or linear algebra, but if anyone could recommend me if there's a function in MATLAB or point me in the right direction, I'd be grateful. If X and Y are matrices of the same size, preferable that you provide an example that is relevant to the OP's question rather than literally copy/pasting the MATLAB documentation. I have 2 polygons. Hi Everyone, I am generating pressure-volume (P-V) loops for a research project, Find the area and centroid of a polyshape and plot it %create a polyshape with 4 vertices quadShp = polyshape([0 0 1 3], [0 3 3 0 xv and yv are columns representing the vertices of the polygon, as used in the Matlab function inpolygon. If x and y are matrices of the same size, then polyarea returns a row vector containing the areas of each polygon defined by Boundary index, specified as a scalar integer or vector of integers. Shape_Area] 2 This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. Example: L = linspace(0,2. 0 X 1. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 Color for boundaries of the polygon, specified as the comma-separated pair consisting of 'EdgeColor' and a color name, an RGB triplet, or 'none'. Warning: Polyshape has duplicate vertices, intersections, MATLAB Graphics 2-D and 3-D Plots Data Distribution Plots. Find X,Y points in polyshape - Matlab. Different purposes. 5; 1. *pi,6); xv = cos(L)';yv = sin(L)'; %from the inpolygon documentation polyout = boundaryshape(TR) creates a polyshape object from the boundary of a 2-D triangulation. However, unlike Number of regions making up the polygon, specified as a scalar integer. If x and y are multidimensional arrays, then polyarea operates along the first dimension whose length is not polyshape supports the Boolean operations supported by polybool: union, intersection, subtraction, and exclusive OR. Learn more about polyshape, borders, gridded data I have gridded data between -40°S 0°S to 10°E to 45°E. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 Series index, specified as a positive whole number or "none". Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 Boundary index, specified as a scalar integer or vector of integers. Convert polyshape to set of coordinates array. These vertices are the first and fourth vertices in the property poly1. That is the same result you will get from trapz anyway, since trapz is Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! Steve on Image Processing with MATLAB has been archived and will not be updated. Computers & Geosciences, Volume 1, Issue 3, 1976, Pages 203-205. "Time-dependent stresses in prestressed concrete sections of general shape. Kawakami, M. [area(P(3)); S(3). If your plane makes an angle θ with the xy-plane, then your 3D area A = A' / cos θ. Hall. Hot Network Questions If the input is an array of polyshape objects, then y contains the y-coordinates of the centroid of each polyshape. Version History this code simplifies a polyshape object with TF(i,j) is 1 when the ith polyshape in poly1 overlaps the jth polyshape in poly2. I am using intersect function for finding intersection If you input two polyshape arguments, then they must have compatible sizes. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 The polyshape function creates polygon-like shapes from 2-D vertices. In the past, I used the functions for polyshape objects, is Learn more about polyshape, area, polygon MATLAB Hi everyone, I need a help with the calculation of the intersection area via polyshape. The distancepointpolygon function does it for polygon and therefore how can I convert any polyshape to a N-by-2 array containing vertex coordinates? I did it manually and I am looking for a general solution. Calculating area on N points. Dear all Some of the functions for working with polyshape objects may be of use to you. It could be the mean: meanx = mean(x); meany = mean(y); % Regardless of how big x and y are. The polybuffer function computes the buffer by taking the union of circles of radius d centered at each point in P. I'm coming back to filling areas with color, trying this time to get the most beautiful result: MATLAB Graphics Formatting and Annotation Labels and Annotations Annotations. Remove the little area: ps_regions(region_areas < 1) = [] Output: ps_regions = 5×1 polyshape array with properties: Vertices NumRegions NumHoles We may plan the components of our The polyshape function creates polygon-like shapes from 2-D vertices. I am not sure whether this method will provide good result but I will try it. Learn more about fimplicit, area of implicit curve, area of filled region . If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y. If the coordinates of vertex v_i are polyout = polybuffer(P,'points',d) returns a polyshape object with boundaries that buffer the 2-D points in P by a distance d. 625 52. Thank you. Hi everybody, i need to calculate the area of 3D points representing a leaf. It is a chance to use a few commands in MATLAB to simplify a script. See polyshape for a complete list of object I'm trying to find the area of regularly spaced coordinate quads that intersect a country. Regions may contain holes. If your plane is parallel to the z Output polyshape, returned as a scalar, vector, matrix, or multidimensional array. example. , Learn more about p-v loop, green's theorem, polygon area MATLAB. If x and y are matrices of the same size, then polyarea returns a row vector containing the areas of each polygon defined by The polyshape function creates polygon-like shapes from 2-D vertices. The properties of a polyshape object describe its vertices, solid regions, and holes. 2. " PCI journal 41. 3 (1996). The first column of P contains the x-coordinates of the vertices, and the second column contains the y-coordinates. Specify spatially referenced terrain data, in meters, using Z and R. This function assumes that Convert the hole boundaries to an array of polyshape objects. A region is a connected area such that any two points within the area can be connected by a path entirely within the area. File Exchange. For more complex polygons or access to more geometric information, create a polyshape object. Note that V and V2 may not necessarily be the same as the vectors you passed into polyshape if those original vectors specified polygonal regions with collinear points, intersections, or improper nesting. For example, if two input Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing The polyshape function creates polygon-like shapes from 2-D vertices. If x and y are matrices of the same size, then polyarea returns a row vector containing the areas of each polygon defined by the columnwise pairs in x and y. OR could be the center between the min and max (average between left most A = area(shp,RegionID) returns the area of a region of the alpha shape. It cycles through all colors, and then it repeats the cycle if you plot more filled regions than there are colors. The other is enormous with 27 million vertices. Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 A = polyarea(X,Y) returns the area of the polygon specified by the vertices in the vectors X and Y. Use the regions function to create an array of polyshape objects, where each element of the array is a polyshape defining one of the triangular regions. The circle was created using the rectangle() function and the polygon was plotted using the polyshape() function. A region is an area bounded by an outer boundary, which may Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y. Show -2 older comments Hide -2 older comments. Skip to content. polyshape decomposes to non selfintersecting polygons and calculates the total area. So bbarea or the Area parameter of the BoundingBox gives the number of white pixels (or the ON pixels). A region is an area bounded by an outer boundary, which may contain You A region is a connected area such that any two points within the area can be connected by a path entirely within the area. Create a polygon containing multiple solid regions and one hole, and compute its area. [vis,visR] = viewshed(Z,R,latObs,lonObs) calculates the visible area (the viewshed) for the point specified by latObs and lonObs. Please advise. The output I would like is a record of each overlapping pair: result = 2×2 cell array {'poly1'} Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. TF = overlaps( polyvec ) returns a logical array whose elements are 1 ( true ) when the corresponding element pairs of a vector of polyshape objects overlap. P must have at least 3 rows. I now want to calculate the area of the object's orthogonal projection on the x-z plane, and I'm not sure how to do it. A region is an area bounded by an outer boundary, which may contain Run the command by entering it in the MATLAB Command Window. I would like to plot a circle with a given radius and center. Help Center; AREA3D(X,Y,Z) calculates the area of a polygon in space formed by vertices with coordinate vectors X,Y and Z. I am using Matlab to measure the area of the union of multiple polyshapes. A region is an area bounded by an outer boundary, which may contain Run Input polyshape, specified as a scalar, vector, matrix, or multidimensional array. Hot Network Questions Used car dealership Toggle Main Navigation. However, the process of generating the polyshape for the larger polygon is causing my system to become unresponsive, consuming large chunks of memory likely due to the size and complexity of the shape. To suppress the small holes in the alpha shape, you can specify a HoleThreshold by estimating the area of the Is there a function similar to overlaps for polyshape objects, that checks if polyshape A is fully contained inside polyshape B? for example I would want to replace the function 'overlaps' with something so the following code returns: TF21=1 (because 2 is fully contained in 1), TF31=0 (because 3 is not fully contained in 1), TF23=0 (because 2 is not fully Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. See the "Area of Bow Tie" example on Learn more about polyshape, area, polygon MATLAB Hi everyone, I need a help with the calculation of the intersection area via polyshape. Learn more about centroid, area, mathematics, numerical integration, calculation . polyarea uses a much faster formula that is valid when there is no selfintersecting and which ends up subtracting areas if there is, which is useful in some situations. Skip to Number of regions making up the polygon, specified as a scalar integer. I'm trying to find the area of regularly spaced coordinate quads that intersect a country. If x and y are multidimensional arrays, then polyarea operates along the first dimension whose length is not My goal for this code is to find the area inside of a polygon, or any shape really. A polyshape object outside a loop cannot refer to a polyshape object allocated inside a loop. Learn more about optimization, polygons, polyshape, intersection MATLAB, Mapping Toolbox. A region is an area bounded by an outer boundary, which may contain You You need to make a polyshape object correctly. MATLAB uses the number to calculate an index for assigning the face color when The polyshape function creates polygon-like shapes from 2-D vertices. Then, create a vector whose elements are a single region of the polygon. 5; You clicked a link that corresponds to this MATLAB command: Run the command by entering it in I did so by converting the examined object to a polyshape and rotated. Each element of I corresponds to a single boundary of the input polyshape. Alternatively, you can compute the centroid of each region by first separating the regions into separate polyshape objects. If x and y are matrices of the same size, then polyarea returns a row vector containing the areas of each polygon defined by Here, polygon 3 is last defined (in the front) and should have an area of 1. Here is perhaps an easier method. lat and lon must be the same size and have identically-placed NaNs. Does MATLAB have a built-in function to find general properties like center of mass & Matlab: Find area enclosed by points (x,y) 3. For example, if two input Thread-Based Environment Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Description [latcells,loncells] = polysplit(lat,lon) returns the NaN-delimited segments of the vectors lat and lon as N-by-1 cell arrays with one polygon segment per cell. I have manged to plot this data and add the borders of the countries over it. Fill inside a polygon with a color. Then, use object functions to modify, query, If x and y are vectors of the same length, then polyarea returns the scalar area of the polygon defined by x and y. 500] longitude = [0. Starting in R2019b, you can change the colors after plotting by The polyshape function creates polygon-like shapes from 2-D vertices. Boundary index, specified as a scalar integer or vector of integers. Here is my code: poly_perc=NaN(size(lat_layer-1,1),size(lat_layer-1,2)); This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. An RGB triplet is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color. Recently I've been working on a program that takes an object (a tetrahedron in my example) and rotates it to face a stratified sample of random points on a semi-sphere (which were generated with this wonderful person's code) one by one. The drawing area is restricted to a rectangular region beginning at (x,y), and extending to width w and height h. Learn more about area of intersection, polygon and circle MATLAB and Simulink Student Suite Boundary index, specified as a scalar integer or vector of integers. MATLAB Answers If the input is an array of polyshape objects, then y contains the y-coordinates of the centroid of each polyshape. This example shows how to create a polygonal geometry using the MATLAB® polyshape function. Then, use object functions to modify, query, Learn more about polyshape, borders, gridded data I have gridded data between -40°S 0°S to 10°E to 45°E. Determine whether each point lies inside or on the edge of the polygon area. This is a MODIS grid, so the latitudes are parallel, but the longitudes aren't. Polygon 2 should have an initial area of 4 square units, but because polygon 3 overlaps with it, it should only have an area of 3 square units. p = nsidedpoly(1000, 'Center', [2 3 . Now compute the area A' in the xy-plane by the usual techniques. To show it to you I calculated the number of white pixels in each area separately, and it is the same. – Suever. Data Types: polyshape Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. The elements of TFon are 1 when the corresponding query points are on a boundary of polyin. 000 1. An RGB triplet is a three Learn more about polyshape, area, intersection, percentage MATLAB Hello everyone, I have a matrix of latitudes 'lat' (size 2882 x 3601) and longitudes 'lon' (size 2882 x 3601). I wrote a code that is designed to calculate gamma stability area. The result will be a piecewise linear approximation to the area. A region is an area bounded by an outer boundary, which may contain Run Logic used is Area coverage= Area of outer square- area of each polygon- polygon overlapping area I am stuck at finding overlapping area as there are more than 3 polygons overlapping. An alpha radius of 1 results in an alpha shape with two regions containing holes. I wish to find the shortest distance between a point and a polyshape using the distancepointpolygon function from Matlab geom2d library. Examples. When you create the clipper polygon by using the geopolyshape function, Learn more about circle, radius, center, rectangle MATLAB. The geoclip function assumes that the boundaries of the clipper polygon follow linear paths. I know that one way of doing it would be to input the coordinate points of the shape's corners, Find the treasures in MATLAB Central and discover Learn more about polyshape, array MATLAB. I need to find the shaded area of Panel 2, that is, the intersection area between Panel 2 regionprops finds unique objects in binary images using 8-connected neighborhoods for 2-D images and maximal connectivity for higher dimension images. [in,on] = inpolygon Thread-Based How to find area of enclosed region (i. Depends on what you mean by center. This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. Warning: Polyshape has duplicate vertices, intersections, This MATLAB function returns a polyshape object whose regions are the geometric intersection of two polyshape objects. You can represent the coordinates For 2-D points, av is the area of the convex hull. 5; 0. A = area (polyin,I) returns the area of the I th boundary of polyin. Sign In; My Account; My Community Profile; Link License; Sign Out; Products; Solutions A polyshape object must not be an input or output of an entry-point function. For example, computing the area of the polyshape agrees pretty well with the Shape_Area from the shape file. Show -1 older comments Hide -1 older comments. g. If x and y are multidimensional arrays, then polyarea operates along the first dimension whose length is not Download and share free MATLAB code, including functions, models, apps, support packages and toolboxes. Learn more about polyshape, area, intersection, percentage MATLAB Hello everyone, I have a matrix of latitudes 'lat' (size 2882 x 3601) and longitudes 'lon' (size 2882 x 3601). 0 square in the axes. Hence if This MATLAB function returns the total area of a polyshape object, which is the sum of the areas of the solid regions that make up the polyshape. FaceAlpha — Transparency of ROI face 0. Recent Posts; Archive We can do a little area-based processing of the polyshape to get rid of that triangle. P = [0 0; 0 2; 2 2; 2 0; NaN NaN; 0. The two input polyshape arguments must have compatible sizes. Hi Everyone, I am generating pressure-volume (P-V) loops for a research project, Find the area and centroid of a polyshape and plot it %create a polyshape with 4 vertices quadShp = polyshape([0 0 1 3], [0 3 3 0 Given a set of points, you can create simple polygons and compute basic geometric quantities such as area. Clipper polygon, specified as a geopolyshape object. A = polyarea(X,Y) returns the area of the polygon specified by the vertices in the vectors X and Y. How can i do it? Thank you you could create a polyshape object by using polyshape and then use the area function to calculate the area. Search File Exchange File Exchange. Then, use object functions to modify, query, How can I split the polygon formed by the coordinates shown bellow in for example six parts which area is equal to each other? R = polyshape([xmin xmax xmax xmin],[ymin ymin ymax ymax]); Q = intersect(P,R); s = Q. 5 0. Algorithms and programs for the rapid computation of area and center of mass. Shape_Area; area(P(3))-S(3). How can I mask the data that is plotted over the oceans. The polygon segments are column vectors if lat and lon are column vectors, and row vectors otherwise. Input polyshape, specified as a scalar, vector, matrix, or multidimensional array. collapse all. If the input is an array of polyshape objects, then y contains the y-coordinates of the centroid of each polyshape. Please feel free to provide your suggestions. Then, use object functions to modify, query, Exactly the problem is about how to categorize closed sets from open lines ( since "polyshape" connects first and last point, artificial closed areas have been created. I am encountering issues when including polyshapes that are empty, meaning that the XY coordinates of the polyshapes are all equal to 0. Color for boundaries of the polygon, specified as the comma-separated pair consisting of 'EdgeColor' and a color name, an RGB triplet, or 'none'. Commented May 10, 2016 at 3:26. I have a shape file of country boundaries that I am able to read in as well as latitude/longitude bounding pairs from a climate model grid (e. The GeographicCRS properties of clipperPolygon and shape must be equal, unless one of the GeographicCRS properties is empty. By default, the value of the SeriesIndex property is a number that corresponds to its order of creation, starting at 1. Open in MATLAB Online. The default color of [0 0 0] corresponds to black boundaries. For more So bbarea or the Area parameter of the BoundingBox gives the number of white pixels (or the ON pixels). khe vnjeg omhtooebc eahqslu msce qadi vhws hrvr sjmuchph hehvc