first sketch

1 files changed, 34 insertions, 0 deletions

diff --git a/gragl.h b/gragl.h
new file mode 100644
index 0000000..6c6c8a7
--- /dev/null
+++ b/gragl.h
@@ -0,0 +1,34 @@
+#ifndef GRAGL_H
+#define GRAGL_H
+
+typedef struct {
+	double x;
+	double y;
+} Point2d;
+
+typedef struct {
+	double v;
+	char valid;
+} Scalar;
+
+typedef struct {
+	unsigned width;
+	unsigned height;
+	Scalar (*func)(double);
+	unsigned n_func;
+	double from;
+	double to;
+	double step;
+} Plot2d;
+
+typedef struct {
+	Plot2d * plots;
+	unsigned n;
+	unsigned padding;
+} Plot2dGroup;
+
+Plot2dGroup * create_plot2d_group(int num_args, ...);
+void free_plot2d_group(Plot2dGroup *);
+void plot(Plot2dGroup *);
+
+#endif