1 files changed, 17 insertions, 0 deletions
diff --git a/src/cmd/map/libmap/sinusoidal.c b/src/cmd/map/libmap/sinusoidal.c
new file mode 100644
index 00000000..6a79706e
--- /dev/null
+++ b/src/cmd/map/libmap/sinusoidal.c
@@ -0,0 +1,17 @@
+#include <u.h>
+#include <libc.h>
+#include "map.h"
+
+int
+Xsinusoidal(struct place *place, double *x, double *y)
+{
+	*x = - place->wlon.l * place->nlat.c;
+	*y = place->nlat.l;
+	return(1);
+}
+
+proj
+sinusoidal(void)
+{
+	return(Xsinusoidal);
+}