| 194 |
# Determine which render function to use. |
# Determine which render function to use. |
| 195 |
useraw, draw_func, draw_func_param = self.low_level_renderer(layer) |
useraw, draw_func, draw_func_param = self.low_level_renderer(layer) |
| 196 |
|
|
| 197 |
|
# |
| 198 |
# Iterate through all shapes that have to be drawn. |
# Iterate through all shapes that have to be drawn. |
| 199 |
|
# |
| 200 |
|
|
| 201 |
|
# Count the shapes drawn so that we can yield every few hundred |
| 202 |
|
# shapes |
| 203 |
count = 0 |
count = 0 |
| 204 |
|
|
| 205 |
|
# Cache the tools (pens and brushes) for the classification |
| 206 |
|
# groups. This is a mapping from the group's ids to the a tuple |
| 207 |
|
# (pen, brush) |
| 208 |
|
tool_cache = {} |
| 209 |
|
|
| 210 |
for shape in self.layer_shapes(layer): |
for shape in self.layer_shapes(layer): |
| 211 |
count += 1 |
count += 1 |
| 212 |
if field is None: |
if field is None: |
| 213 |
group = defaultGroup |
group = defaultGroup |
| 214 |
else: |
else: |
| 215 |
record = table.ReadRowAsDict(shape.ShapeID()) |
value = table.ReadRowAsDict(shape.ShapeID())[field] |
| 216 |
assert record is not None |
group = lc.FindGroup(value) |
|
group = lc.FindGroup(record[field]) |
|
| 217 |
|
|
| 218 |
if not group.IsVisible(): |
if not group.IsVisible(): |
| 219 |
continue |
continue |
| 220 |
|
|
| 221 |
# don't recreate new objects if they are the same as before |
try: |
| 222 |
if group is not old_group: |
pen, brush = tool_cache[id(group)] |
| 223 |
old_group = group |
except KeyError: |
| 224 |
|
pen, brush = tool_cache[id(group)] \ |
| 225 |
prop = group.GetProperties() |
= self.tools_for_property(group.GetProperties()) |
|
|
|
|
if prop != old_prop: |
|
|
pen, brush = self.tools_for_property(prop) |
|
| 226 |
|
|
| 227 |
if useraw: |
if useraw: |
| 228 |
data = shape.RawData() |
data = shape.RawData() |
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