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improve english roadgraph online help and add german translation
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| FILE(GLOB HELP_FILES *-*) | ||
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| INSTALL(FILES ${HELP_FILES} | ||
| DESTINATION ${QGIS_DATA_DIR}/resources/context_help) | ||
| INSTALL(FILES ${HELP_FILES} DESTINATION ${QGIS_DATA_DIR}/resources/context_help) | ||
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| <h3>Straßengraph Erweitungseinstellungen</h3> | ||
| <p>Straßengraph ist eine C++-Erweiterung für QGIS, die den kürzesten Weg zwischen zwei Punkten auf jedem Polylinien-Layer berechnet und ihn über dem Straßennetz anzeigt.</p> | ||
| <p> | ||
| <a href="#creating">Einheiten der Erweiterung</a><br/> | ||
| <a href="#topologyTolerance">Topologietoleranz</a><br/> | ||
| <a href="#layerSettings">Verkehrslayereinstellung</a><br/> | ||
| </p> | ||
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| <a name="creating"> | ||
| <h4>Einheiten der Erweiterung</h4> | ||
| </a> | ||
| <p>Sie können die berechneten Längen und Zeiten verschiedenen Einheiten anzeigen. Wählen Sie sie unter <label>Längeneinheit</label> und <label>Zeiteinheit</label> ein.</p> | ||
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| <a name="topologyTolerance"> | ||
| <h4>Topologietoleranz</h4> | ||
| </a> | ||
| <p><label>Topologietoleranz</label> - der Abstand in Projekteinheiten. Wenn zwei Punkt diesen Abstand unterschreiten, werden sie als gleich verstanden. Ein Wert größe Null verlangsamt die Erweiterung, ermöglicht aber die Nutzung von qualitativ schlechteren Datenquellen.</p> | ||
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| <h5>Hinweis</h5> | ||
| <p>Die Straßengraph-Erweitungen betrachtet zwei Straßen als verbunden, wenn sie einen gemeinsamen Knoten haben. Knoten über ihre Koordinate eindeutig. Es kann aber vorkommen, dass bei der Digitalisierung Fehler auftreten. Diese treten manchmal auch auf, wenn von einem in andere Koordinatensystem transformiert wird. Dieser Effekt führt dazu, dass verbundene Straßen nicht als solches erkannt werden. In diesem Fall sollte die Topologietoleranz auf einen Wert größer Null erhöht werden.</p> | ||
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| <a name="LayerSettings"> | ||
| <h4>Verkehrslayereinstellung</h4> | ||
| </a> | ||
| <p><label>Layer</label> - der Layer mit dem Straßennetz.</p> | ||
| <p><label>Richtungsfeld</label> - der Wert diese Feldes gibt an wie die Erweiterung die Straßen interpretieren soll. <label>Wert für Vorwärts</label> - die Bewegungsrichtung entspricht der Reihenfolge der Linienpunkte. <label>Wert für Rückwärts</label> - die Bewegungsrichtung ist der Reihenfolge der Linienpunkte entgegengesetzt. <label>Wert für beide Richtungen</label> - Die Straße ist in beide Richtungen befahrbar.</p> | ||
| <p>Geschwindigkeitsfeld</p> - ein Feld, dass die aufgezeichnete Geschwindigkeit auf dieser Straße angibt.</p> | ||
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| <h5>Voreinstellungen</h5> | ||
| <p>Wenn die Attributtabelle Ihres Linienlayers nicht die erforderlichen Felder oder Felder mit unerwarteten Werten enthält, werden Voreinstellungen verwendet. Sie können diese unter dem Reiter <label>Voreinstellungen</label> festlegen.</p> |
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| <h3>Road graph plugin settings</h3> | ||
| <p>Road graph is a C++ plugin for QGIS, that calculates the shortest path between two points on any polyline layer and plots this path over the road network.</p> | ||
| <p> | ||
| <a href="#creating">Units plugin</a><br/> | ||
| <a href="#creating">Plugin units</a><br/> | ||
| <a href="#topologyTolerance">Topology tolerance</a><br/> | ||
| <a href="#layerSettings">Transport layer settings</a><br/> | ||
| </p> | ||
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| <a name="creating"> | ||
| <h4>Units plugin</h4> | ||
| <h4>Plugin units</h4> | ||
| </a> | ||
| <p>You can adjust the output of the calculated distance and time of their way to the desired units. To do this, specify the value of field <label>Distance unit</label> and <label>Time unit</label>.</p> | ||
| <p>You can adjust the units of the calculated distance and time of the path. Select the units in <label>Distance unit</label> and <label>Time unit</label>.</p> | ||
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| <a name="topologyTolerance"> | ||
| <h4>Topology tolerance</h4> | ||
| </a> | ||
| <p><label>Topology tolerance</label> - the distance in units of the project. If two points are located at a distance less than the topological tolerance, they are identified as a vertex. The value of the topological tolerance greater than zero slows down the plug, but you can use not ideal data sources.</p> | ||
| <p><label>Topology tolerance</label> - the distance in units of the project. If the distance of two points falls short the topological tolerance, they are considered to be the vertex. A topological tolerance value greater than zero slows down the plugin, but you can use not ideal data sources.</p> | ||
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| <h5>Note</h5> | ||
| <p>Road graph plugin view that the two roads are linked, if they have a common node. Nodes are uniquely identified by its coordinates. However, in the process of digitizing error may occur. The errors sometimes occur, and when converted from one coordinate reference system to another. This effect leads to the fact that the associated roads are interpreted as Road graph plugin is not connected. Decision in this case is to set the value of the topological tolerance is greater than zero.</p> | ||
| <p>The Road graph plugin considers two roads as linked, if they have a common node. A Node is uniquely identified by it's coordinates. However, in the process of digitizing errors may occur. The errors sometimes occur when the network is transformed from one coordinate reference system to another. This might cause the Road graph plugin to consider connected roads as disconnected. In that case the topological tolerance should be set to a value greater than zero.</p> | ||
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| <a name="LayerSettings"> | ||
| <h4>Transport layer settings</h4> | ||
| </a> | ||
| <p><label>Layer</label> - the data layer of roads.</p> | ||
| <p><label>Field direction</label> - the value of this field indicates how to interpret the Road graph plugin layers feature. <label>Value for forward direction</label> - the direction of movement corresponds to the order of points in a feature. <label>Value for reverse direction</label> - the direction of movement corresponds to the inverse order of points in the figure. <label>Value for two-way direction</label> - both possible.</p> | ||
| <p>Speed field</p> - a field in which the recorded speed on the road.</p> | ||
| <p><label>Field direction</label> - the value of this field indicates how to interpret the Road graph plugin layers feature. <label>Value for forward direction</label> - the direction of movement corresponds to the order of points in a feature. <label>Value for reverse direction</label> - the direction of movement corresponds to the reverse order of points in the feature. <label>Value for two-way direction</label> - both possible.</p> | ||
| <p>Speed field</p> - field containing the recorded speed on the road.</p> | ||
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| <h5>Default settings</h5> | ||
| <p>If the attribute table of your linear layer does not contain the required fields or fields contain unexpected values, the plugin will use the default values. You can specify the default tab <label>Default settings</label>.</p> | ||
| <p>If the attribute table of your linear layer does not contain the required fields or fields contain unexpected values, the plugin will use default values. You can set them in the default tab <label>Default settings</label>.</p> |
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| <h3>Den kürzesten Weg finden</h3> | ||
| <p>Straßengraph ist eine C++-Erweiterung für Quantum GIS, die den kürzesten Weg zwischen zwei Punkten auf jedem Linienlayer bestimmt und über dem Straßennetz anzeigt. Bevor die Erweiterung genutzt werden kann, muß sie konfiguriert werden. Dies erfolgt unter <label>Erweiterungen → Straßengraph → Einstellungen</label></p> | ||
| <p> | ||
| <a href="#howto">Wie's geht</a><br/> | ||
| </p> | ||
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| <a name="howto"> | ||
| <h4>Wie's geht</h4> | ||
| </a> | ||
| <p>Sie können Start- und Endpunkt mit den Knöpfen neben <label>Start</label> und <label>Stopp</label> auswählen. | ||
| Durch Klick auf <label>Berechnen</label> wird der kürzeste Weg mit dem Optimierungskriterium, das unter <label>Kriterium</label> gewählt ist, ausgeführt. Mit <label>Export</label> können Sie den berechneten Weg in einem neuen Vektorlayer speichern und mit <label>Löschen</label> alle Felder, die Punkte sowie den berechneten Weg aus der Karte löschen.</p> | ||
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| <h5>Hinweis</h5> | ||
| <p>Um den Start- und Endpunkt der Route mit dem Straßennetz zu verbinden wählt die Erweiterung den nächsten Knoten oder die nächste Kante des Graphen. Sie können aber an jedem Punkt des Graphen beginnen. Allerdings wird der Abstand vom Start- bzw. Endpunkt zum Straßennetz nicht berücksichtigt.</p> |
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| <h3>Finding shortest path</h3> | ||
| <p>Road graph is a C++ plugin for Quantum GIS, that calculates the shortest path between two points on any line layer and plots this path over the road network. Before using the plugin to configure it. This can be done in the menu <label>Plugins -> Road graph -> Settings</label></p> | ||
| <p>Road graph is a C++ plugin for Quantum GIS, that calculates the shortest path between two points on any line layer and plots this path over the road network. Before using the plugin to configure it. This can be done in the menu <label>Plugins → Road graph → Settings</label></p> | ||
| <p> | ||
| <a href="#howto">How to</a><br/> | ||
| </p> | ||
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| <a name="howto"> | ||
| <h4>How to</h4> | ||
| </a> | ||
| <p>You can select start and end points with special buttons Select points tool | ||
| near the fields. | ||
| Pressing <label>Calculate</label> button will run shortest path calculation using optimization criterion, selected in <label>Criterion</label> combobox. Button <label>Export</label> allow you exporting calculated path into new vector layer, and button <label>Clear</label> will erase all fields, remove points and calculated path from map canvas.</p> | ||
| <p>You can select start and end points with the select buttons next to the fields. | ||
| Pressing the <label>Calculate</label> button will run the shortest path calculation using the optimization criterion selected in the <label>Criterion</label> combobox. The <label>Export</label> button allow you to export a calculated path to a new vector layer, and the button <label>Clear</label> will erase all fields and remove the points and calculated path from map canvas.</p> | ||
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| <h5>Note</h5> | ||
| <p>In order to bind the start and stop points of the route to the road network Road graph selects between the nearest point or an arc of the graph. In fact it can bind to any part of the road network. Nevertheless, their route and its characteristics are not taken into account the distance from the starting point to the road network and road network to the stoping point.</p> | ||
| <p>In order to bind the start and stop points of the route to the road network Road graph selects the nearest point or arc of the graph. In fact it can bind to any part of the road network. Nevertheless, their route and its characteristics do not take into account the distance from the starting point to the road network and of the road network to the stopping point.</p> |