28 lines
697 B
Plaintext
28 lines
697 B
Plaintext
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#version 150 compatibility
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uniform float plot_scale;
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uniform vec3 x_axis;
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uniform vec3 y_axis;
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uniform bool x_axis_log_scale;
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uniform bool y_axis_log_scale;
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uniform vec2 extent;
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uniform vec2 domain_min_pnt;
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uniform vec2 domain_max_pnt;
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uniform vec3 center_location;
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vec4 map_plot_to_world(in vec2 pnt)
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{
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vec2 delta = extent*(pnt - 0.5*(domain_min_pnt + domain_max_pnt) )/(domain_max_pnt - domain_min_pnt);
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vec3 p = center_location + delta.x * x_axis + delta.y * y_axis;
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return vec4(p,1.0);
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}
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vec4 map_plot_to_eye(in vec2 pnt)
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{
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return gl_ModelViewMatrix * map_plot_to_world(pnt);
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}
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vec4 map_plot_to_screen(in vec2 pnt)
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{
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return gl_ModelViewProjectionMatrix * map_plot_to_world(pnt);
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}
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