clip.c File Reference

Functions for inserting points into objects. More...

#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include "global.h"
#include "data.h"
#include "draw.h"
#include "mymem.h"

Include dependency graph for clip.c:

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Functions
bool	ClipLine (double minx, double miny, double maxx, double maxy, double *x1, double *y1, double *x2, double *y2, double margin)
	Clip the line to the clipBox.

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Detailed Description

Functions for inserting points into objects.

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Copyright.

PCB, interactive printed circuit board design

Copyright (C) 1994,1995,1996 Thomas Nau

Copyright (C) 2004 harry eaton

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Contact addresses for paper mail and Email: Thomas Nau, Schlehenweg 15, 88471 Baustetten, Germany Thomas.Nau@rz.uni-ulm.de

Definition in file clip.c.

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Function Documentation

bool ClipLine	(	double	minx,
		double	miny,
		double	maxx,
		double	maxy,
		double *	x1,
		double *	y1,
		double *	x2,
		double *	y2,
		double	margin
	)

Clip the line to the clipBox.

Clip X,Y to the given bounding box, plus a margin.

Returns:

true if something to be drawn, false if the whole thing is clipped.

Definition at line 62 of file clip.c.

References maxx, maxy, minx, and miny.

Referenced by ghid_draw_line(), and lesstif_draw_line().