I would like to introduce MathGL into a physics simulation program in C which plots some data in real-time.
Currently I'm using the GLUT library directly, but I would like to move to something more advanced like MathGL. However, I would like to keep some parts in GLUT.
The method mglCanvasGLUT::Window seems to be creating the GLUT context and directly setting the window size, registering the display and keyboard callbacks, and finally calling glutMainLoop().
I would like to keep the control of GLUT and be able to handle multiple windows as well, using the idle callback function. What is the preferred way of interfacing MathGL with GLUT so that I can have finer control of the redraw loop?
Currently, I did a small test, but some parts are not working properly, like showing the title. Also the axis appear with scaling:
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Anonymous
Anonymous
-
2019-03-15
Hi Alexey,
I'm currently using mgl_create_graph_gl to create the canvas (similarly as by using mglGraph(1, w, h)). And the graphs are shown properly, but I'm not able to set the window size. The same behavior is shown by using the class mglGraph.
By calling mgl_set_size with the new size, nothing happens. If I call mgl_get_width() always returns 1, same with the width.
Also if I use glViewport(0,0,w,h), the graph is only scaled (so the text is deformed) and is not what I want.
The only way I found to change the aspect ratio, is by manually calling to mglCanvas::SetSize(2, 1, true) which is then properly updated to 2x1. However some parts of the graph fail (vect_2d doesn't show anymore, neither the axis) while others work (contf).
I attach to you the actual program, which shows the titles scaled.
Hi,
I would like to introduce MathGL into a physics simulation program in C which plots some data in real-time.
Currently I'm using the GLUT library directly, but I would like to move to something more advanced like MathGL. However, I would like to keep some parts in GLUT.
The method
mglCanvasGLUT::Windowseems to be creating the GLUT context and directly setting the window size, registering the display and keyboard callbacks, and finally callingglutMainLoop().I would like to keep the control of GLUT and be able to handle multiple windows as well, using the idle callback function. What is the preferred way of interfacing MathGL with GLUT so that I can have finer control of the redraw loop?
Currently, I did a small test, but some parts are not working properly, like showing the title. Also the axis appear with scaling:
https://github.com/rodarima/cpic/blob/master/test/mgl.c
I use
gcc mgl.c -lm -lGL -lGLU -lglut -lmgl2-glut -lmgl2 -o mglto compile.Best regards,
Rodrigo.
Hi, I think you should consider to use only OpenGL interface of MathGL (see http://mathgl.sourceforge.net/doc_en/OpenGL-output.html, http://mathgl.sourceforge.net/doc_en/Constructor.html). Because you already prepare OpenGL canvas in yours side of GLUT-based application.
Hi Alexey,
I'm currently using
mgl_create_graph_glto create the canvas (similarly as by usingmglGraph(1, w, h)). And the graphs are shown properly, but I'm not able to set the window size. The same behavior is shown by using the classmglGraph.By calling
mgl_set_sizewith the new size, nothing happens. If I callmgl_get_width()always returns 1, same with the width.Also if I use
glViewport(0,0,w,h), the graph is only scaled (so the text is deformed) and is not what I want.The only way I found to change the aspect ratio, is by manually calling to
mglCanvas::SetSize(2, 1, true)which is then properly updated to 2x1. However some parts of the graph fail (vect_2d doesn't show anymore, neither the axis) while others work (contf).I attach to you the actual program, which shows the titles scaled.
Best regards,
Rodrigo.