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# $Id: zoomtest.py 5542 2006-07-03 22:43:20Z hobu $
#
# Project: MapServer
# Purpose: xUnit style Python mapscript tests of Map "zooming"
# 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/zoomtest.py -v
#
# ===========================================================================
import os, sys
import unittest
# the testing module helps us import the pre-installed mapscript
from testing import mapscript, MapZoomTestCase
# ===========================================================================
# Test begins now
class ZoomPointTestCase(MapZoomTestCase):
def testRecenter(self):
"""ZoomPointTestCase.testRecenter: recentering the map with a point returns the same extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj(50.0, 50.0)
extent = self.mapobj1.extent
self.mapobj1.zoomPoint(1, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-50,-50,50,50))
def testZoomInPoint(self):
"""ZoomPointTestCase.testZoomInPoint: zooming in by a power of 2 returns the proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj(50.0, 50.0)
extent = self.mapobj1.extent
self.mapobj1.zoomPoint(2, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-25,-25,25,25))
def testZoomOutPoint(self):
"""ZoomPointTestCase.testZoomOutPoint: zooming out by a power of 2 returns the proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
extent = self.mapobj1.extent
self.mapobj1.zoomPoint(-2, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-100,-100,100,100))
def testZoomOutPointConstrained(self):
"""ZoomPointTestCase.testZoomOutPointConstrained: zooming out to a constrained extent returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
max = mapscript.rectObj()
max.minx, max.miny, max.maxx, max.maxy = (-100.0,-100.0,100.0,100.0)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
extent = self.mapobj1.extent
self.mapobj1.zoomPoint(-4, p, w, h, extent, max)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, max)
def testZoomBadSize(self):
"""ZoomPointTestCase.testZoomBadSize: zooming to a bad size raises proper error"""
p = mapscript.pointObj()
p.x, p.y = (50, 50)
extent = self.mapobj1.extent
w = 0
h = -1
self.assertRaises(mapscript.MapServerError,
self.mapobj1.zoomPoint, -2, p, w, h, extent, None);
def testZoomBadExtent(self):
"""ZoomPointTestCase.testZoomBadExtent: zooming to a bad extent raises proper error"""
p = mapscript.pointObj()
p.x, p.y = (50, 50)
extent = self.mapobj1.extent
extent.maxx = extent.maxx - 1000000
w = 100
h = 100
self.assertRaises(mapscript.MapServerError,
self.mapobj1.zoomPoint, -2, p, w, h, extent, None);
class ZoomRectangleTestCase(MapZoomTestCase):
def testZoomRectangle(self):
"""ZoomRectangleTestCase.testZoomRectangle: zooming to an extent returns proper map extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
r = mapscript.rectObj(1, 26, 26, 1, 1)
extent = self.mapobj1.extent
self.mapobj1.zoomRectangle(r, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-49,24,-24,49))
def testZoomRectangleConstrained(self):
"""ZoomRectangleTestCase.testZoomRectangleConstrained: zooming to a constrained extent returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
max = mapscript.rectObj(-100.0, -100.0, 100.0, 100.0)
r = mapscript.rectObj(0, 200, 200, 0, 1)
extent = self.mapobj1.extent
self.mapobj1.zoomRectangle(r, w, h, extent, max)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, max)
def testZoomRectangleBadly(self):
"""zooming into an invalid extent raises proper error"""
w, h = (self.mapobj1.width, self.mapobj1.height)
r = mapscript.rectObj(0, 0, 200, 200)
extent = self.mapobj1.extent
self.assertRaises(mapscript.MapServerError,
self.mapobj1.zoomRectangle, r, w, h, extent, None)
class ZoomScaleTestCase(MapZoomTestCase):
def testRecenter(self):
"""ZoomScaleTestCase.testRecenter: recentering map returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
scale = 2834.6472
extent = self.mapobj1.extent
self.mapobj1.zoomScale(scale, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-50,-50,50,50))
def testZoomInScale(self):
"""ZoomScaleTestCase.testZoomInScale: zooming in to a specified scale returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
scale = 1417.3236
extent = self.mapobj1.extent
self.mapobj1.zoomScale(scale, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-25,-25,25,25))
def testZoomOutScale(self):
"""ZoomScaleTestCase.testZoomOutScale: zooming out to a specified scale returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
scale = 5669.2944
extent = self.mapobj1.extent
self.mapobj1.zoomScale(scale, p, w, h, extent, None)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, mapscript.rectObj(-100,-100,100,100))
def testZoomOutPointConstrained(self):
"""ZoomScaleTestCase.testZoomOutPointConstrained: zooming out to a constrained extent returns proper extent"""
w, h = (self.mapobj1.width, self.mapobj1.height)
max = mapscript.rectObj()
max.minx, max.miny, max.maxx, max.maxy = (-100.0,-100.0,100.0,100.0)
p = mapscript.pointObj()
p.x, p.y = (50, 50)
extent = self.mapobj1.extent
scale = 10000
self.mapobj1.zoomScale(scale, p, w, h, extent, max)
new_extent = self.mapobj1.extent
self.assertRectsEqual(new_extent, max)
# ===========================================================================
# Run the tests outside of the main suite
if __name__ == '__main__':
unittest.main()
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