From 17feb4361e02ceefb3266063ceb04e714895ddb6 Mon Sep 17 00:00:00 2001
From: Tectu <joel@unormal.org>
Date: Sat, 23 Jun 2012 21:15:31 +0200
Subject: [PATCH] graphDrawSystem() does take now grid-X and grid-Y values

---
 graph.c | 18 +++++++++---------
 graph.h |  3 ++-
 2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/graph.c b/graph.c
index a9d4a378..d90eaa95 100644
--- a/graph.c
+++ b/graph.c
@@ -1,26 +1,26 @@
 #include "glcd.h"
 
-#define GRID_X		20
-#define GRID_Y		20
-
 #define MARKSIZE	5 	// half
 
-static uint16_t x, y;	// origins in graph
+static uint16_t x, y;			// origins in graph
+static uint16_t grid_X, grid_Y;	//grids
 
-void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) {
+void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t gridX, uint16_t gridY, uint16_t color) {
 	uint16_t i, length;
 	volatile uint16_t off;
 
 	x = x0;
 	y = y0;
+	grid_X = gridX;
+	grid_Y = gridY;
 
 	// X-Axis
 	length = x1 - x0;
 	lcdDrawLine(x0, y0, x1, y0, color);
 	lcdDrawLine(x1, y0, x1-5, y0+5, color);
 	lcdDrawLine(x1, y0, x1-5, y0-5, color);	
-	for(i=1; i<(length / GRID_X); i++) {
-		off = x0 + i*GRID_X;
+	for(i=1; i<(length / grid_X); i++) {
+		off = x0 + i * grid_X;
 		lcdDrawLine(off, y0-MARKSIZE, off, y0+MARKSIZE, color);
 	}
 
@@ -29,8 +29,8 @@ void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_
 	lcdDrawLine(x0, y0, x0, y1, color);
 	lcdDrawLine(x0, y1, x0-5, y1+5, color);
 	lcdDrawLine(x0, y1, x0+5, y1+5, color);
-	for(i=1; i<(length / GRID_Y); i++) {
-		off = x0 + i*GRID_Y;
+	for(i=1; i<(length / grid_Y); i++) {
+		off = x0 + i * grid_Y;
 		lcdDrawLine(x0-MARKSIZE, off, x0+MARKSIZE, off, color);	
 	}
 }
diff --git a/graph.h b/graph.h
index 25c7191b..d0ebd2c2 100644
--- a/graph.h
+++ b/graph.h
@@ -11,11 +11,12 @@ extern "C" {
  *
  * param:
  *		- x0, y0, x1, y1:	location of arrows
+ *		- gridX, gridY:		grid size in X and Y direction
  *		- color:			color of arrows
  *
  * return: none
  */
-void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color);
+void graphDrawSystem(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t gridX, uint16_t gridY, uint16_t color);
 
 /*
  * Description: does draw coordinates into graph as dots