Added new line style options for sketchy chaining of feature edges.

The default chaining option is now called "Natural", while the new chaining options
are "Sketchy: Topology Preserved" and "Sketchy: Topology broken".  The latter two
options allow for generating chains of feature edges with a sketchy multiple touch.
The "Sketchy: Topology Preserved" option takes account of the topology of objects
in the view map, while the "Sketchy: Topology broken" ignores the edge topology.
The "rounds" option specifies the number of rounds in sketchy strokes.
This commit is contained in:
2011-09-19 22:40:44 +00:00
parent 513293a256
commit 38f24637d4
5 changed files with 42 additions and 5 deletions

View File

@@ -881,10 +881,15 @@ def process(layer_name, lineset_name):
upred = TrueUP1D()
Operators.select(upred)
# join feature edges to form chains
bpred = AngleLargerThanBP1D(1.0) # XXX temporary fix for occasional unexpected long lines
if linestyle.same_object:
bpred = AndBP1D(bpred, SameShapeIdBP1D())
Operators.bidirectionalChain(ChainPredicateIterator(upred, bpred), NotUP1D(upred))
if linestyle.chaining == "NATURAL":
bpred = AngleLargerThanBP1D(1.0) # XXX temporary fix for occasional unexpected long lines
if linestyle.same_object:
bpred = AndBP1D(bpred, SameShapeIdBP1D())
Operators.bidirectionalChain(ChainPredicateIterator(upred, bpred), NotUP1D(upred))
elif linestyle.chaining == "SKETCHY_TOPOLOGY_PRESERVED":
Operators.bidirectionalChain(pySketchyChainSilhouetteIterator(linestyle.rounds))
elif linestyle.chaining == "SKETCHY_TOPOLOGY_BROKEN":
Operators.bidirectionalChain(pySketchyChainingIterator(linestyle.rounds))
# split chains
if linestyle.material_boundary:
Operators.sequentialSplit(MaterialBoundaryUP0D())

View File

@@ -514,7 +514,13 @@ class RENDER_PT_freestyle_linestyle(RenderButtonsPanel, Panel):
# Chaining
col = layout.column()
col.label(text="Chaining:")
col.prop(linestyle, "same_object")
col.prop(linestyle, "chaining", text="")
if linestyle.chaining == "NATURAL":
col.prop(linestyle, "same_object")
elif linestyle.chaining == "SKETCHY_TOPOLOGY_PRESERVED":
col.prop(linestyle, "rounds")
elif linestyle.chaining == "SKETCHY_TOPOLOGY_BROKEN":
col.prop(linestyle, "rounds")
# Splitting
col = layout.column()
col.label(text="Splitting:")

View File

@@ -69,6 +69,8 @@ static void default_linestyle_settings(FreestyleLineStyle *linestyle)
linestyle->r = linestyle->g = linestyle->b = 0.0;
linestyle->alpha = 1.0;
linestyle->thickness = 1.0;
linestyle->chaining = LS_CHAINING_NATURAL;
linestyle->rounds = 3;
linestyle->min_length = 0.0f;
linestyle->max_length = 10000.0f;

View File

@@ -322,6 +322,11 @@ typedef struct LineStyleThicknessModifier_Calligraphy {
#define LS_MIN_2D_LENGTH 16
#define LS_MAX_2D_LENGTH 32
/* FreestyleLineStyle::chaining */
#define LS_CHAINING_NATURAL 1
#define LS_CHAINING_SKETCHY_TOPOLOGY_PRESERVED 2
#define LS_CHAINING_SKETCHY_TOPOLOGY_BROKEN 3
/* FreestyleLineStyle::caps */
#define LS_CAPS_BUTT 1
#define LS_CAPS_ROUND 2
@@ -334,6 +339,8 @@ typedef struct FreestyleLineStyle {
float r, g, b, alpha;
float thickness;
int flag, caps;
int chaining;
unsigned int rounds;
float min_length, max_length;
unsigned short dash1, gap1, dash2, gap2, dash3, gap3;
int panel; /* for UI */

View File

@@ -674,6 +674,11 @@ static void rna_def_linestyle(BlenderRNA *brna)
{LS_PANEL_GEOMETRY, "GEOMETRY", 0, "Geometry", "Show the panel for stroke geometry options."},
{LS_PANEL_MISC, "MISC", 0, "Misc", "Show the panel for miscellaneous options."},
{0, NULL, 0, NULL, NULL}};
static EnumPropertyItem chaining_items[] = {
{LS_CHAINING_NATURAL, "NATURAL", 0, "Natural", "Natural chaining."},
{LS_CHAINING_SKETCHY_TOPOLOGY_PRESERVED, "SKETCHY_TOPOLOGY_PRESERVED", 0, "Sketchy: Topology Preserved", "Natural chaining with a sketchy multiple touch."},
{LS_CHAINING_SKETCHY_TOPOLOGY_BROKEN, "SKETCHY_TOPOLOGY_BROKEN", 0, "Sketchy: Topology Broken", "Sketchy chaining with a broken topology of objects."},
{0, NULL, 0, NULL, NULL}};
static EnumPropertyItem cap_items[] = {
{LS_CAPS_BUTT, "BUTT", 0, "Butt", "Butt cap (flat)."},
{LS_CAPS_ROUND, "ROUND", 0, "Round", "Round cap (half-circle)."},
@@ -723,6 +728,18 @@ static void rna_def_linestyle(BlenderRNA *brna)
RNA_def_property_struct_type(prop, "LineStyleThicknessModifier");
RNA_def_property_ui_text(prop, "Thickness Modifiers", "List of line thickness modifiers.");
prop= RNA_def_property(srna, "chaining", PROP_ENUM, PROP_NONE);
RNA_def_property_enum_sdna(prop, NULL, "chaining");
RNA_def_property_enum_items(prop, chaining_items);
RNA_def_property_ui_text(prop, "Chaining", "Select the way how feature edges are jointed to form chains.");
RNA_def_property_update(prop, NC_SCENE, NULL);
prop= RNA_def_property(srna, "rounds", PROP_INT, PROP_UNSIGNED);
RNA_def_property_int_sdna(prop, NULL, "rounds");
RNA_def_property_range(prop, 1, 1000);
RNA_def_property_ui_text(prop, "Rounds", "Number of rounds in a sketch multiple touch.");
RNA_def_property_update(prop, NC_SCENE, NULL);
prop= RNA_def_property(srna, "geometry_modifiers", PROP_COLLECTION, PROP_NONE);
RNA_def_property_collection_sdna(prop, NULL, "geometry_modifiers", NULL);
RNA_def_property_struct_type(prop, "LineStyleGeometryModifier");