fx - ZOOM LEVEL DEFINITION
maxZoom minZoom fixZoom zoomBuffer centerPoint |
The values for nearly all features may be entered as calculated formulas or variables. |
For detailed information about the notation in expression editors go to chapter The fx‑editor. |
SETTING / VALUES |
EXPLANATION |
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-1 feature disabled (default) number feature enabled - fill in maximum zoom level, number from 0 to 22 (varies with background maps) |
Defines, how close the automatic zoom is allowed to zoom into the map. It is no restriction, the user is still able to zoom further in. Without any background maps (when the background is just white) there are 46 zoom levels. The exact number of available zoom levels when using a background map, like GoogleMaps or any other Tile Map, depends on the respective provider. However in most cases not more than 22 levels. |
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-1 feature disabled (default) number feature enabled - fill in minimum zoom level, number from 0 to 22 |
Defines a minimum zoom level to block a bigger map section. In combination with the feature MapBoundaries and zoomlevels it is a way to specify and determine an area on the map within the user can operate. This is useful if a user must not have access to other areas on the map or if limited tiles are used (to prevent missing images - see screenshot). Have a look at these features as well. |
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-1 feature disabled (default) number feature enabled - set fixed zoom level, number from 0 to 22 |
Defines a fixed zoom level and disables the automatic zoom, for example to control zooming by the use of a QlikView variable. A QlikView Slider could be set, so the user can freeze the specific zoom level himself. However the user is still able to zoom further in and out, by using the zoom buttons or the mouse wheel. Without any background maps (when the background is just white) there are 22 zoom levels. The exact number of available zoom levels when using a background map, like GoogleMaps or any other Tile Map, depends on the respective provider. However in any case there are maximum 22 levels. |
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number buffer added to the current zoom level, number from 0 to 100, unit is 0,01 zoom level (default is 12) |
Defines a buffer space between the current map content and the border around it. This prevents labels and other information near the edge from being "cut" as well as keeping an better overview. The unit of the zoom buffer is a hundredth of a zoom level - 0,01. With a click on Info ? in the menu bar or in the touchscreen menu, the current zoom level will be displayed in the dialog. |
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Please note that Tile Maps (background maps) can only be displayed in integers (whole numbers), because they consist of several images, which can only be displayed at once. That's why the zoom changes gradually, when any background maps are activated. Without a background map the course is fluent and in decimals. Therefore the zoom buffer is a minimum distance, which means that the zoom level will be rounded to the next smaller level (the level with a bigger map section), if a background map is enabled. |
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coordinates coordinates for a fixed point in the map center (default placeholder is 51.109790, 10.647978) |
Moves the map center to a fixed geographical point. Useful for working with variables to control the focus point directly in the QlikView application. As long as you don't pan the map, this coordinate will always stay in focus, for example while selecting or zooming. You can combine this feature with maxZoom or fixZoom to define a whole area. You can get the needed coordinates for instance by right clicking in GoogleMaps and choosing "What's here?" in the context menu - the coordinates will then be displayed in the upper left corner of the web page. To create a kind of Center Area instead of a Center Point, you can set several points in this feature - separated by semicolon. Notation: |
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Qlik object ID ID of the map object that functions as source |
Set here the ID of a map object (e.g. "CH01") that functions as source for the map position of this map. As soon as the Mastermap changes the position, for example because of a selection, this map here will be adapted. The source map can also be on a different worksheet, as long as it is in the same app. |