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authorTaru Karttunen <taruti@taruti.net>2011-03-30 15:46:40 +0300
committerTaru Karttunen <taruti@taruti.net>2011-03-30 15:46:40 +0300
commite5888a1ffdae813d7575f5fb02275c6bb07e5199 (patch)
treed8d51eac403f07814b9e936eed0c9a79195e2450 /sys/src/cmd/plot/libplot/range.c
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/cmd/plot/libplot/range.c')
-rwxr-xr-xsys/src/cmd/plot/libplot/range.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/src/cmd/plot/libplot/range.c b/sys/src/cmd/plot/libplot/range.c
new file mode 100755
index 000000000..c4485560a
--- /dev/null
+++ b/sys/src/cmd/plot/libplot/range.c
@@ -0,0 +1,11 @@
+#include "mplot.h"
+void range(double x0, double y0, double x1, double y1){
+ e1->xmin = x0;
+ e1->ymin = y0;
+ e1->scalex = e1->sidex / (x1 - x0 );
+ e1->scaley = e1->sidey / (y1 - y0 );
+ e1->quantum=e0->quantum/sqrt(e1->scalex*e1->scalex +
+ e1->scaley*e1->scaley);
+ if(e1->quantum < .01)
+ e1->quantum = .01;
+}