fixed a long lines agg bug

jdh2358 · jdh2358 · commit 1c54a58f4762 · 2006-04-18T15:55:42.000Z
svn path=/trunk/matplotlib/; revision=2300
diff --git a/CHANGELOG b/CHANGELOG
@@ -1,3 +1,4 @@
+2006-04-18 Fixed a bug that caused agg to not render long lines
 
 2006-04-16 Masked array support for pcolormesh; changed default to
            "flat" (don't show edges); made pcolormesh support the
diff --git a/DEVNOTES b/DEVNOTES
@@ -62,8 +62,21 @@ http://matplotlib.sourceforge.net
   ncftp> cd incoming
   ncftp> put tar.gz, zip exe
 
-5) go to https://sourceforge.net/project/admin/?group_id=80706 and do a
-#  file release
+5) go to https://sourceforge.net/project/admin/?group_id=80706 and do
+   a file release.  Click on the "Admin" tab to log in as an admin,
+   and then the "File Releases" tab.  Go to the bottom and click "add
+   release" and enter the package name but not the version number in
+   the "Package Name" box.  You will then be prompted for the "New
+   release name" at which point you can add the version number, eg
+   somepackage-0.1 and click "Create this release".
+
+   You will then be taken to a fairly self explanatory page where you
+   can enter the Change notes, the release notes, and select which
+   packages from the incoming ftp archive you want to include in this
+   release.  For each binary, you will need to select the platform and
+   file type, and when you are done you click on the "notify users who
+   are monitoring this package link"
+
 
 Standard reminders for numarray build
 
diff --git a/src/_backend_agg.cpp b/src/_backend_agg.cpp
@@ -1336,6 +1336,7 @@ RendererAgg::draw_lines(const Py::Tuple& args) {
   double lastx(-2.0), lasty(-2.0);
 
   for (size_t i=0; i<Nx; i++) {
+
     thisx = *(double *)(xa->data + i*xa->strides[0]);
     thisy = *(double *)(ya->data + i*ya->strides[0]);
 
@@ -1375,12 +1376,21 @@ RendererAgg::draw_lines(const Py::Tuple& args) {
       //std::cout << "snapto "<<thisx<<" "<<thisy<<std::endl;
     }
 
+
     if (moveto)
       path.move_to(thisx, thisy);
     else
       path.line_to(thisx, thisy);
-    
+  
     moveto = false;
+    if ((i%10000)==0) {
+      //draw the path in chunks
+      _render_lines_path(path, gc);
+      path.remove_all();
+      path.move_to(thisx, thisy);      
+    }
+
+  
     //std::cout << "draw lines " << thisx << " " << thisy << std::endl;
   }
 

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+2006-04-18 Fixed a bug that caused agg to not render long lines`
`1`	`2`
`2`	`3`	`2006-04-16 Masked array support for pcolormesh; changed default to`
`3`	`4`	`"flat" (don't show edges); made pcolormesh support the`