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authorNorbert Preining <norbert@preining.info>2023-01-16 03:03:27 +0000
committerNorbert Preining <norbert@preining.info>2023-01-16 03:03:27 +0000
commit6f9e1680085e7bb4d258f6f8116369d122e196e1 (patch)
tree9ac0ecb239240d1d672b188f29c1479de215074b /graphics/pgf/base/source/SimpleDemoC.c
parentb8345f39630408bb198e7636381ce4240154ca9b (diff)
CTAN sync 202301160303
Diffstat (limited to 'graphics/pgf/base/source/SimpleDemoC.c')
-rw-r--r--graphics/pgf/base/source/SimpleDemoC.c42
1 files changed, 0 insertions, 42 deletions
diff --git a/graphics/pgf/base/source/SimpleDemoC.c b/graphics/pgf/base/source/SimpleDemoC.c
deleted file mode 100644
index 18e5889ad1..0000000000
--- a/graphics/pgf/base/source/SimpleDemoC.c
+++ /dev/null
@@ -1,42 +0,0 @@
-#include <pgf/gd/interface/c/InterfaceFromC.h>
-#include <math.h>
-
-static void fast_hello_world (pgfgd_SyntacticDigraph* graph, void* v) {
- double angle = 6.28318530718 / graph->vertices.length;
- double radius = pgfgd_tonumber(graph->options, "fast simple demo radius");
-
- int i;
- for (i = 0; i < graph->vertices.length; i++) {
- pgfgd_Vertex* v = graph->vertices.array[i];
- v->pos.x = cos(angle*i) * radius;
- v->pos.y = sin(angle*i) * radius;
- }
-}
-
-int luaopen_pgf_gd_examples_c_SimpleDemoC (struct lua_State *state) {
- pgfgd_Declaration* d;
-
- // The main layout key
- d = pgfgd_new_key ("fast simple demo layout");
- pgfgd_key_summary (d, "The C version of the hello world of graph drawing.");
- pgfgd_key_algorithm (d, fast_hello_world, 0);
- pgfgd_key_documentation (d,
- "Just like the |SimpleDemo| algorithm, this algorithm arranges \
- the nodes of a graph in a circle (without paying heed to the sizes of the \
- nodes or to the edges). Its main purpose is to show how C code \
- can access the Lua representation of graphs. See \
- Section~\ref{section-algorithms-in-c} of the manual for detais.");
- pgfgd_key_add_precondition (d, "connected");
- pgfgd_declare (state, d);
- pgfgd_free_key (d);
-
- // The radius key
- d = pgfgd_new_key ("fast simple demo radius");
- pgfgd_key_summary (d, "A radius value for the hello world of graph drawing");
- pgfgd_key_type (d, "length");
- pgfgd_key_initial (d, "1cm");
- pgfgd_declare (state, d);
- pgfgd_free_key (d);
-
- return 0;
-}