Compute visible area of partically obscured object of 3D figure

2 visualizaciones (últimos 30 días)
viet le
viet le el 28 de Ag. de 2016
Editada: viet le el 18 de Sept. de 2016

Iniciar sesión para responder a esta pregunta.

Respuesta aceptada

Image Analyst
Image Analyst el 28 de Ag. de 2016
It would take a lot of complicated geometrical equations. Or you could get an approximation by saving the rendering you have to an image with export_fig(), and then counting up the red pixels.
  3 comentarios
Mostrar 1 comentario más antiguo
Image Analyst
Image Analyst el 29 de Ag. de 2016
Something like
rgbImage = getframe();
% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
redPixels = redChannel == 255 & greenChannel == 0 & blueChannel = 0;
redArea = sum(redPixels(:));
But this only gets you the area in pixels on your screen, which is not necessarily the area in the units of your axes. You would have to do a spatial calibration to turn pixels on the screen into the units of your axes.

Iniciar sesión para comentar.

Más respuestas (0)

Categorías

Más información sobre 2-D and 3-D Plots en Help Center y File Exchange.

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by