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annotate doku/source/restrictions.txt @ 218:fb1ffd385115

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merged with upstream changes
author Stephan Holl <stephan.holl@intevation.de>
date Mon, 25 Jul 2011 11:09:52 +0200
parents 4ebba3c52924
children df533a03ad9f
rev   line source
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1 .. index:: restrictions
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2 .. _restriction-label:
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4 ------------
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5 Restrictions
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6 ------------
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8 Currently there are some restrictions in the usage of the converter:
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10 Supported datasources:
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11
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12 * ArcSDE-passwords cannot be read since they are encrypted. The converter
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13 exports the string ``<PASSWORD>`` which needs to be replaced later on in the
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14 resulting mapfile.
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16 * Since MapServer cannot use a FileGeodatabase datasources (yet) the MXD2map
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17 does not support this datasource and will not transform the MXD-file at all.
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18
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19 * Raster data is not supported by the converter yet.
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20
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21 Symbol support:
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22
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23 * Line symbols with pattern cannot be combined with marker symbols. The
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24 converter reads all symbols and writes the corresponding styles to the
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25 resulting mapfile but the marker symbols are rendered without any gap.
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26 The resulting mapimage may not look as intended.
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27
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28 .. hint::
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29 Workarround: For small marker symbols it is recommended to use a line symbol in
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30 combination with pattern (in ArcGIS called template) to create the
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31 symbology.
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32 The reason why marker symbols cannot be used in combination with a template
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33 is the difficulty to interpret the read attributes like marks and gaps and
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34 write the appropriate symbols with the appropiate gap to the mapfile.
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35
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36 * The converter sets the width to 1 for line symbols that have a width
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37 smaller than 1. Outlines with a width smaller than 1 are drawn in the fill
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38 color of the ploygon and the width is set to 1.
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39
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40 .. tip::
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41 To avoid lines and line colors (specially outlines) to be handled by the
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42 converter, use integer numbers for line width only.
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43
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44 * Picture symbols are not supported by the converter since ArcGIS embedds
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45 the image directly into the MXDfile.
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46
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47 * In ArcGIS maps default symbols can be defined as fallback within classifications.
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48 Since MapServer does not support such fallback symbols or styles
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49 within classifications the converter does not read these default symbols.
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51 * In ArcGIS predefined symbols like bars or pie charts can be used to display
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52 values. The converter does not support these symbols yet.
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53
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54 Layer support:
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55
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56 * Grouplayer with more than one group level are not supported by the MapServer
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57 and even not by the converter.
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59 * Expressions for label are parsed by an internal parser in ArcGIS. The
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60 expressions designed for this parser cannot be interpreted by the mapserver.
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61 Therefore label expressions may not contain any special functions or must fit
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62 the mapserver expression design pattern.
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63
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