[Bf-blender-cvs] [10e9be3cec2] greasepencil-object: GPencil: Basic path exported

[Antonio Vazquez]

Commit: 10e9be3cec23fb36e700294f7d9fbd37384daf56
Author: Antonio Vazquez
Date:   Fri Jul 24 22:41:36 2020 +0200
Branches: greasepencil-object
https://developer.blender.org/rB10e9be3cec23fb36e700294f7d9fbd37384daf56

GPencil: Basic path exported

Still pending perimter, materials and center in the document.

===================================================================

M	source/blender/io/gpencil/intern/gpencil_io_svg.cc

===================================================================

diff --git a/source/blender/io/gpencil/intern/gpencil_io_svg.cc b/source/blender/io/gpencil/intern/gpencil_io_svg.cc
index 0bd689c2426..8e226331471 100644
--- a/source/blender/io/gpencil/intern/gpencil_io_svg.cc
+++ b/source/blender/io/gpencil/intern/gpencil_io_svg.cc
@@ -18,6 +18,7 @@
  * \ingroup bgpencil
  */
 #include <iostream>
+#include <string>
 
 #include "BKE_context.h"
 #include "BKE_gpencil.h"
@@ -126,6 +127,8 @@ bool GpencilExporterSVG::write(void)
 /* Create document header and main svg node. */
 void GpencilExporterSVG::create_document_header(void)
 {
+  Scene *scene = CTX_data_scene(params.C);
+
   /* Add a custom document declaration node */
   pugi::xml_node decl = doc.prepend_child(pugi::node_declaration);
   decl.append_attribute("version") = "1.0";
@@ -143,15 +146,18 @@ void GpencilExporterSVG::create_document_header(void)
   main_node.append_attribute("version").set_value("1.0");
   main_node.append_attribute("x").set_value("0px");
   main_node.append_attribute("y").set_value("0px");
-  main_node.append_attribute("width").set_value("841px");
-  main_node.append_attribute("height").set_value("600px");
-  main_node.append_attribute("viewBox").set_value("0 0 841 600");
+  main_node.append_attribute("width").set_value(std::to_string(scene->r.xsch).c_str());
+  main_node.append_attribute("height").set_value(std::to_string(scene->r.ysch).c_str());
+  std::string viewbox = "0 0 " + std::to_string(scene->r.xsch) + " " +
+                        std::to_string(scene->r.ysch);
+  main_node.append_attribute("viewBox").set_value(viewbox.c_str());
 }
 
 /* Main layer loop. */
 void GpencilExporterSVG::layers_loop(void)
 {
   Depsgraph *depsgraph = CTX_data_depsgraph_pointer(params.C);
+  Scene *scene = CTX_data_scene(params.C);
   Object *ob = params.ob;
 
   bGPdata *gpd = (bGPdata *)ob->data;
@@ -173,15 +179,24 @@ void GpencilExporterSVG::layers_loop(void)
       BKE_gpencil_parent_matrix_get(depsgraph, ob, gpl, diff_mat);
 
       pugi::xml_node gps_node = gpl_node.append_child("path");
-      gps_node.append_attribute("fill").set_value("#000000");
+      // gps_node.append_attribute("fill").set_value("#000000");
       gps_node.append_attribute("stroke").set_value("#000000");
-      gps_node.append_attribute("stroke-width").set_value("0.5");
-
+      gps_node.append_attribute("stroke-width").set_value("1.0");
+      std::string txt = "M";
       for (int i = 0; i < gps->totpoints; i++) {
+        if (i > 0) {
+          txt.append("L");
+        }
         bGPDspoint *pt = &gps->points[i];
         int screen_co[2];
         gpencil_3d_point_to_screen_space(region, diff_mat, &pt->x, screen_co);
+        /* Invert Y axis. */
+        int y = scene->r.ysch - screen_co[1];
+        txt.append(std::to_string(screen_co[0]) + "," + std::to_string(y));
       }
+      /* Close patch (cyclic)*/
+      // txt.append("z");
+      gps_node.append_attribute("d").set_value(txt.c_str());
     }
   }
 }