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authorHamilton Kibbe <hamilton.kibbe@gmail.com>2016-01-28 12:19:03 -0500
committerHamilton Kibbe <hamilton.kibbe@gmail.com>2016-01-28 12:19:03 -0500
commit5df38c014fd09792995b2b12b1982c535c962c9a (patch)
tree3dd1f118a752b7b6e75511e1f3b3af3ac1b67bdc /examples/cairo_example.py
parentb9f1b106c3006f1dddb1279ae9622630a29d18c7 (diff)
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Cleanup, rendering fixes.
fixed rendering of tented vias fixed rendering of semi-transparent layers fixed file type detection issues added some examples
Diffstat (limited to 'examples/cairo_example.py')
-rw-r--r--examples/cairo_example.py60
1 files changed, 34 insertions, 26 deletions
diff --git a/examples/cairo_example.py b/examples/cairo_example.py
index 14a7037..fcd7a44 100644
--- a/examples/cairo_example.py
+++ b/examples/cairo_example.py
@@ -24,46 +24,54 @@ a .png file.
"""
import os
-from gerber import read
-from gerber.render import GerberCairoContext, theme
+from gerber import load_layer
+from gerber.render import GerberCairoContext, RenderSettings, theme
GERBER_FOLDER = os.path.abspath(os.path.join(os.path.dirname(__file__), 'gerbers'))
# Open the gerber files
-copper = read(os.path.join(GERBER_FOLDER, 'copper.GTL'))
-mask = read(os.path.join(GERBER_FOLDER, 'soldermask.GTS'))
-silk = read(os.path.join(GERBER_FOLDER, 'silkscreen.GTO'))
-drill = read(os.path.join(GERBER_FOLDER, 'ncdrill.DRD'))
+copper = load_layer(os.path.join(GERBER_FOLDER, 'copper.GTL'))
+mask = load_layer(os.path.join(GERBER_FOLDER, 'soldermask.GTS'))
+silk = load_layer(os.path.join(GERBER_FOLDER, 'silkscreen.GTO'))
+drill = load_layer(os.path.join(GERBER_FOLDER, 'ncdrill.DRD'))
# Create a new drawing context
ctx = GerberCairoContext()
-# Set opacity and color for copper layer
-ctx.alpha = 1.0
-ctx.color = theme.COLORS['hasl copper']
-
-# Draw the copper layer
-copper.render(ctx)
-
-# Set opacity and color for soldermask layer
-ctx.alpha = 0.75
-ctx.color = theme.COLORS['green soldermask']
+# Draw the copper layer. render_layer() uses the default color scheme for the
+# layer, based on the layer type. Copper layers are rendered as
+ctx.render_layer(copper)
# Draw the soldermask layer
-mask.render(ctx, invert=True)
+ctx.render_layer(mask)
-# Set opacity and color for silkscreen layer
-ctx.alpha = 1.0
-ctx.color = theme.COLORS['white']
-# Draw the silkscreen layer
-silk.render(ctx)
+# The default style can be overridden by passing a RenderSettings instance to
+# render_layer().
+# First, create a settings object:
+our_settings = RenderSettings(color=theme.COLORS['white'], alpha=0.85)
-# Set opacity for drill layer
-ctx.alpha = 1.0
-ctx.color = theme.COLORS['black']
-drill.render(ctx)
+# Draw the silkscreen layer, and specify the rendering settings to use
+ctx.render_layer(silk, settings=our_settings)
+
+# Draw the drill layer
+ctx.render_layer(drill)
# Write output to png file
ctx.dump(os.path.join(os.path.dirname(__file__), 'cairo_example.png'))
+
+# Load the bottom layers
+copper = load_layer(os.path.join(GERBER_FOLDER, 'bottom_copper.GBL'))
+mask = load_layer(os.path.join(GERBER_FOLDER, 'bottom_mask.GBS'))
+
+# Clear the drawing
+ctx.clear()
+
+# Render bottom layers
+ctx.render_layer(copper)
+ctx.render_layer(mask)
+ctx.render_layer(drill)
+
+# Write png file
+ctx.dump(os.path.join(os.path.dirname(__file__), 'cairo_bottom.png'))