glot::contour Class Reference

curve: a contour to plot More...

#include <contour.h>

Inheritance diagram for glot::contour:

List of all members.

Public Member Functions
	contour (const string &f, const color &col)
	Constructor.
void	dl_gen (const screen &scr)
	Display-list generator.

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Detailed Description

curve: a contour to plot

This class maps a scalar function of two variables to a 2-d plot showing the iso-curve z = 0

See also:

grapher

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Constructor & Destructor Documentation

glot::contour::contour	(	const string &	f,
		const color &	col
	)			[inline]

Constructor.

Parameters:

	f	- A function of x, y and t
	col	- the color of the curve

The function may use x, y and t and any combination of C-available functions. Rather, any C-available functions supported by the OpenGL Shading Language (GLSL) which includes most.

NOTE: GLSL is very picky about typecasting. When using integer values use the float equivalent instead: (Use 1.0 not 1, 93.0 not 93)

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Member Function Documentation

void glot::contour::dl_gen

(

const screen &

scr

)

[virtual]

Display-list generator.

Parameters:

scr

- The specifications of the screen

This returns the geometry appropriate for the geometry shader used here. In this case, it's a set of line segments that specify a bounding square for which the shader should find the iso-curve. That is, a line from (x_min, y_min) to (x_max, y_max)

Implements glot::primitive.

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The documentation for this class was generated from the following file:

• contour.h