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Change a line graphic’s color, width and style.

Image of simple line symbol

Use case

Customize the appearance of a line with a color, width and style scheme suitable for the data. For example, a red line with a dashed style could represent a geological fault mapped on a geological map.

How to use the sample

Use the drop down menus in the control panel to change the line color, width and style.

How it works

  1. Create a Polyline using a PointCollection to define its geometry.
  2. Create a SimpleLineSymbol(SimpleLineSymbol.Style, color, width).
  3. Set the color, width and style of the simple line symbol object with:
    • setColor();
    • setWidth();
    • setStyle();
  4. Create a Graphic passing in the polyline and simple line symbol as parameters.
  5. Add the graphic to the graphics overlay with graphicsOverlay.getGraphics().add(new Graphic(line, simpleLineSymbol)).

Relevant API

  • Graphic
  • GraphicsOverlay
  • PointCollection
  • Polyline
  • SimpleLineSymbol

Tags

graphic, line, symbol

Sample Code

module-info.java module-info.java SimpleLineSymbolSample.java
/*
* Copyright 2022 Esri.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
module com.esri.samples.simple_line_symbol {
// require ArcGIS Maps SDK for Java module
requires com.esri.arcgisruntime;
// handle SLF4J http://www.slf4j.org/codes.html#StaticLoggerBinder
requires org.slf4j.nop;
// require JavaFX modules that the application uses
requires javafx.graphics;
requires javafx.controls;
exports com.esri.samples.simple_line_symbol;
}