Generate multiple images with rectangle of specific dimension

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kumara dommeti 2020-6-17

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评论： kumara dommeti 2020-6-18

Like shown in figure, I want to create an image (224x224) with one rectangle (black) with dimensions (1meter*0.25meter) and its shadow (blue) with dimensions (1meter*2meters). In between these two rectangles, i want to have some space with dimensions (1meter*0.15meter) (also shown in figure). Like this i want to create 100 images placing the rectangle, space and shadow at different positions in image. please help me with this.

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KSSV 2020-6-17

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编辑：KSSV 2020-6-17

在 MATLAB Online 中打开

Provide the four vertices of the rectangle.
Read about patch.
Use hold on to plot multiple different patches on the same figure.
Save the images using imwrite.

Also if you know the origin (left bottom vertex) of the rectangle and it's length, breadth; you can use rect , boundingbox also.

You can draw rectangle like this:

A = rand(1,2) ; % origin 
L = 5 ;   % length 
B = 6 ;   % breadth 
% Make all coordinates of rectangle
V = [A ; A(1)+B A(2) ; A(1)+B A(2)+L ; A(1) A(2)+L] ;
patch(V(:,1),V(:,2),'r')