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en:help:v2:maps:erase-color [2018/09/13 16:04]
alpinequest created
en:help:v2:maps:erase-color [2020/11/27 14:25] (current)
alpinequest [How to increase the color range to erase?]
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-<​sub>​[[en:​help|Online Help]] > [[en:​help:​v2|AlpineQuest 2.x]] > [[en:​help:​v2:​maps|Maps & Layers]]</​sub>​+<​sub>​[[en:​help|Online Help]] > [[en:​help:​v2|AlpineQuest 2.x]] > [[en:​help:​v2:​maps|Maps & Layers]] ​> How to erase a color from a map?</​sub>​
  
-====== How to erase a color of a map? ======+====== How to erase a color from a map? ======
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-When displaying multiple non-transparent maps at the same time {{:​icon_01.png?​nolink}},​ only the top one will be visible ​on the screen. The application allows you to erase a color range from a map so that the map below can be visible for those areas, which can be very useful for particular uses, such as turning a map into a layer.+When displaying multiple non-transparent maps at the same time {{:​icon_01.png?​nolink}},​ only the top one will be visible. The application allows you to erase a color range from a map so that the map below can also be visible for those areas, which can be very useful for particular uses, such as turning a map into a layer
 + 
 +{{:​icon_help.png?​nolink}} See [[en:​help:​v2:​maps:​on-demand-change#​how_to_add_another_map_as_a_layer|here how to display multiple maps]] at the same time.
  
 To erase a color range of a map: To erase a color range of a map:
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   * Choose ''"​**Erase color**"''​ {{:​icon_03.png?​nolink}}.   * Choose ''"​**Erase color**"''​ {{:​icon_03.png?​nolink}}.
  
-The erase color side view is displayed and allows you to choose the RGB color values to erase {{:​icon_04.png?​nolink}}. For each color components, three values are given: the minimum value of the range to erase, the center value and and maximum value.+The erase color side view is displayed and allows you to choose the RGB color values to erase {{:​icon_04.png?​nolink}}. For each color component, three values are given: the minimum value of the range to erase, the center value and and maximum value.
  
 To help you choose the right color, an information box is also displayed {{:​icon_05.png?​nolink}} which gives the RGB color values at the screen center (under the screen center icon). To help you choose the right color, an information box is also displayed {{:​icon_05.png?​nolink}} which gives the RGB color values at the screen center (under the screen center icon).
 +
 +{{:​icon_help.png?​nolink}} The erased color will be forgotten as soon as you un-display the map. In order to save it you can create a [[en:​help:​v2:​maps:​favorite-sets|favorite map]].
  
 {{ :​en:​help:​v2:​maps:​erase-color-1.jpg?​nolink }} {{ :​en:​help:​v2:​maps:​erase-color-1.jpg?​nolink }}
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 Alternatively,​ to automatically erase the color at the screen center: Alternatively,​ to automatically erase the color at the screen center:
-  * Tap the ''"​**Settings**"''​ {{:​icon_06.png?​nolink}} icon button; +  * Tap the ''"​**Tools**"''​ {{:​icon_06.png?​nolink}} icon button; 
-  * Choose ''"​**Screen ​center ​coordinates**"''​ {{:​icon_07.png?​nolink}}.+  * Choose ''"​**Erase screen ​center ​color**"''​ {{:​icon_07.png?​nolink}}.
  
 The RGB color values are automatically chosen and the color is erased {{:​icon_08.png?​nolink}}. The RGB color values are automatically chosen and the color is erased {{:​icon_08.png?​nolink}}.
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 ===== How to increase the color range to erase? ===== ===== How to increase the color range to erase? =====
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-By default, the width of the color range goes from -5 values to +5 values around the range center value (11 values erased per color). In order to increase or reduce the accuracy of the selected color, you can modify ​the range of the color values: +By default, the width of the color range goes from -5 values to +5 values around the range center value (11 color values erased per color channel). In order to increase or reduce the accuracy of the selected color, you can modify the color values ​range
-  * Tap the ''"​**Settings**"''​ {{:​icon_06.png?​nolink}} icon button; +  * Tap the ''"​**Tools**"''​ {{:​icon_06.png?​nolink}} icon button; 
-  * Choose ''"​**Accuracy**"''​ {{:​icon_09.png?​nolink}};​ +  * Choose ''"​**Color ranges width**"''​ {{:​icon_09.png?​nolink}};​ 
-  * Select a smaller range to increase accuracy and erase less colors, for example ''"​**+/​-3**"''​ (7 values erased per color); +  * Select a smaller range to increase accuracy and erase less colors, for example ''"​**+/​-3**"''​ (7 color values erased per component); 
-  * Select a wider range to decrease accuracy and erase more color, for example ''"​**+/​-9**"''​(19 values erased per color).+  * Select a wider range to decrease accuracy and erase more colors, for example ''"​**+/​-9**"''​(19 ​color values erased per component).
  
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 ===== How to disable the erase of a color? ===== ===== How to disable the erase of a color? =====
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-To not erase any colors anymore: +To not erase colors anymore: 
-  * Tap the ''"​**Settings**"''​ {{:​icon_06.png?​nolink}} icon button;+  * Tap the ''"​**Tools**"''​ {{:​icon_06.png?​nolink}} icon button;
   * Choose ''"​**None**"''​ {{:​icon_11.png?​nolink}}.   * Choose ''"​**None**"''​ {{:​icon_11.png?​nolink}}.
  

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