ckplot

commit c4247c328dbba95c3c33c6304cbfbe82f4c8617d
parent 5bbd587cf75a40576c7a9c221743f3d0abe24e09
Author: aabacchus <ben@bvnf.space>
Date:   Sun,  3 Oct 2021 02:10:32 +0100

kplot: add -O|-X to choose data marker format

Diffstat:
M
kplot.c
 | 
17
+++++++++++++----

1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/kplot.c b/kplot.c
@@ -11,29 +11,32 @@
 
 void
 usage(char *argv0) {
-    fprintf(stderr, "usage: %s [-HTwoh] [file.csv]\n", argv0);
+    fprintf(stderr, "usage: %s [-HTwoh] [-O|-X] [file.csv]\n", argv0);
     fprintf(stderr, "    -H          treat first line as header\n");
     fprintf(stderr, "    -T format   output format (options \"png\", \"pdf\")"
             " (default: \"pdf\")\n");
     fprintf(stderr, "    -o outfile  output filename\n");
     fprintf(stderr, "    -w width\n");
     fprintf(stderr, "    -h height\n");
+    fprintf(stderr, "    -O          data markers are circles\n");
+    fprintf(stderr, "    -X          data markers are crosses\n");
 }
 
 int
 main(int argc, char **argv) {
-    int ch, flag_H, flag_o, output_type, width, height, w, h;
+    int ch, flag_H, flag_o, output_type, width, height, w, h, point_type;
     char *outfile;
     flag_H = flag_o = 0;
     width = 600;
     height = 400;
+    point_type = KPLOT_POINTS;
     enum {
         OUT_PNG,
         OUT_PDF
     };
     output_type = OUT_PDF;
     outfile = "out.pdf";
-    while ((ch = getopt(argc, argv, "HT:o:w:h:")) != -1) {
+    while ((ch = getopt(argc, argv, "HT:o:w:h:OX")) != -1) {
         switch (ch) {
             case 'H':
                 flag_H = 1;
@@ -69,6 +72,12 @@ main(int argc, char **argv) {
                 }
                 width = w;
                 break;
+            case 'O':
+                point_type = KPLOT_POINTS;
+                break;
+            case 'X':
+                point_type = KPLOT_MARKS;
+                break;
             case '?':
                 usage(*argv);
                 return 1;
@@ -134,7 +143,7 @@ main(int argc, char **argv) {
 
     d1 = kdata_array_alloc(points1, rows);
     p = kplot_alloc(&kpcfg);
-    kplot_attach_data(p, d1, KPLOT_POINTS, NULL);
+    kplot_attach_data(p, d1, point_type, NULL);
     kdata_destroy(d1);
     if (output_type == OUT_PNG)
         surf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);