How do I generate one binary image with all my shapes in it?

This is my code below. I require a binary image to fit all my shapes in. The binary image background should be displayed in white and the shapes should be in black. The binary image should fit all my shapes in it. I used "subplot",it seems though it doesn't generate one image but rather several images together. My code below;

[Image Analyst]

Don't double space your code. Single space it and then highlight it and click {}Code to format it properly.

[Yashlin Naidoo]

Done

Answer 1

[Walter Roberson]

Use poly2mask to create the binary images of the polygons. Then use horzcat() or vertcat() to put them side by side.