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# $Id: symboltest.py 6522 2007-08-08 20:43:38Z hobu $
#
# Project: MapServer
# Purpose: xUnit style Python mapscript tests of Symbol
# Author: Sean Gillies, sgillies@frii.com
#
# ===========================================================================
# Copyright (c) 2004, Sean Gillies
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
# ===========================================================================
#
# Execute this module as a script from mapserver/mapscript/python
#
# python tests/cases/symboltest.py -v
#
# ===========================================================================
import os, sys
import unittest
import StringIO
# the testing module helps us import the pre-installed mapscript
from testing import mapscript, MapTestCase
from testing import TESTMAPFILE, XMARKS_IMAGE, HOME_IMAGE
# ===========================================================================
# Test begins now
class SymbolTestCase(unittest.TestCase):
def testConstructor(self):
"""create new instance of symbolObj"""
symbol = mapscript.symbolObj('test')
assert symbol.name == 'test'
assert symbol.thisown == 1
def testConstructorImage(self):
"""create new instance of symbolObj from an image"""
symbol = mapscript.symbolObj('xmarks', XMARKS_IMAGE)
assert symbol.name == 'xmarks'
assert symbol.type == mapscript.MS_SYMBOL_PIXMAP
format = mapscript.outputFormatObj('GD/PNG')
img = symbol.getImage(format)
img.save('sym-%s.%s' % (symbol.name, img.format.extension))
class DynamicGraphicSymbolTestCase(MapTestCase):
def setUp(self):
MapTestCase.setUp(self)
f = open(HOME_IMAGE, 'rb')
s = StringIO.StringIO(f.read())
f.close()
symb_img = mapscript.imageObj(s)
self.h_symbol = mapscript.symbolObj('house')
self.h_symbol.type = mapscript.MS_SYMBOL_PIXMAP
self.h_symbol.setImage(symb_img)
f = open(XMARKS_IMAGE, 'rb')
s = StringIO.StringIO(f.read())
f.close()
symb_img = mapscript.imageObj(s)
self.x_symbol = mapscript.symbolObj('xmarks')
self.x_symbol.type = mapscript.MS_SYMBOL_PIXMAP
self.x_symbol.setImage(symb_img)
def testSetPCTImage(self):
"""set image of new symbolObj"""
assert self.h_symbol.name == 'house'
assert self.h_symbol.type == mapscript.MS_SYMBOL_PIXMAP
format = mapscript.outputFormatObj('GD/PNG')
format.transparent = mapscript.MS_ON
img = self.h_symbol.getImage(format)
img.save('set-%s.%s' % (self.h_symbol.name, img.format.extension))
def testDrawSetPCTImage(self):
"""draw a map using the set image symbol"""
symbol_index = self.map.symbolset.appendSymbol(self.h_symbol)
assert symbol_index == 4, symbol_index
num = self.map.symbolset.numsymbols
assert num == 5, num
inline_layer = self.map.getLayerByName('INLINE')
s = inline_layer.getClass(0).getStyle(0)
s.symbol = symbol_index
s.size = -1 # pixmap's own size
inline_layer.transparency = mapscript.MS_GD_ALPHA
img = self.map.draw()
img.save('testDrawSetPCTImage.%s' % (img.format.extension))
def testSetRGBAImage(self):
"""set image of new symbolObj"""
assert self.x_symbol.name == 'xmarks'
assert self.x_symbol.type == mapscript.MS_SYMBOL_PIXMAP
format = mapscript.outputFormatObj('GD/PNG')
img = self.x_symbol.getImage(format)
img.save('set-%s.%s' % (self.x_symbol.name, img.format.extension))
def testDrawSetRGBAImage(self):
"""draw a map using the set image symbol"""
symbol_index = self.map.symbolset.appendSymbol(self.x_symbol)
inline_layer = self.map.getLayerByName('INLINE')
s = inline_layer.getClass(0).getStyle(0)
s.symbol = symbol_index
s.size = -1 # pixmap's own size
inline_layer.transparency = mapscript.MS_GD_ALPHA
self.map.selectOutputFormat('PNG24')
img = self.map.draw()
img.save('testDrawSetRGBAImage.%s' % (img.format.extension))
class MapSymbolTestCase(MapTestCase):
def testGetPoints(self):
"""get symbol points as line and test coords"""
symbol = self.map.symbolset.getSymbol(1)
assert symbol.name == 'circle'
line = symbol.getPoints()
assert line.numpoints == 1, line.numpoints
pt = self.getPointFromLine(line, 0)
self.assertPointsEqual(pt, mapscript.pointObj(1.0, 1.0))
def testSetPoints(self):
"""add lines of points to an existing symbol"""
symbol = self.map.symbolset.getSymbol(1)
assert symbol.name == 'circle'
line = mapscript.lineObj()
self.addPointToLine(line, mapscript.pointObj(2.0, 2.0))
self.addPointToLine(line, mapscript.pointObj(3.0, 3.0))
assert symbol.setPoints(line) == 2
assert symbol.numpoints == 2
line = symbol.getPoints()
assert line.numpoints == 2, line.numpoints
pt = self.getPointFromLine(line, 1)
self.assertPointsEqual(pt, mapscript.pointObj(3.0, 3.0))
def testSetStyle(self):
"""expect success after setting an existing symbol's style"""
symbol = self.map.symbolset.getSymbol(1)
assert symbol.setPattern(0, 1) == mapscript.MS_SUCCESS
def testRGBASymbolInPNG24(self):
"""draw a RGBA PNG pixmap on PNG canvas"""
self.map.setImageType('PNG24')
#self.map.getLayerByName('INLINE-PIXMAP-RGBA').status \
# == mapscript.MS_DEFAULT
img = self.map.draw()
img.save('pixmap-rgba-24.png')
def testRGBASymbolInJPEG(self):
"""draw a RGBA PNG pixmap on JPEG canvas"""
self.map.setImageType('JPEG')
#self.map.getLayerByName('INLINE-PIXMAP-RGBA').status \
# == mapscript.MS_DEFAULT
img = self.map.draw()
img.save('pixmap-rgba.jpg')
# ===========================================================================
# Run the tests outside of the main suite
if __name__ == '__main__':
unittest.main()
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