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Markings is a library of advanced symbols for the ArcGIS API for Flex. It's designed to give to the developer (You) infinite number of different styles for rendering your Graphics on the Map.

The first featured symbol is the AdvancedLineSymbol. The ArcGIS API for Flex supports a finite numbers of line styles (solid, dash, dashdot, dashdotdot, dot) through the SimpleLineSymbol. The AdvancedLineSymbol lets you define easily, using MXML or AS3, meaningful line symbologies. The symbol does the heavy duty work, projecting the Polyline, clipping it and you just have to provide "line part" which are drawn sequentially. A part can define a solid or dashed line, using Spark strokes or icons which can be placed anywhere along the line using an offset. By animating this offset the line can express a motion.

Try it


Getting started.

  • Get the Markings SWC.
  • Create a new application containing a map and some line Graphic.
  • Start styling.

Example of AdvancedLineSymbol

<mk:AdvancedLineSymbol id="lineSymbolRoad">

        <!-- White outter stroke -->
            <s:SolidColorStroke color="0xFFFFFF" weight="10"/>

        <!-- Gray inside stroke -->
            <s:SolidColorStroke color="0xAAAAAA" weight="6"/>

        <!-- Lane separation -->
        <mk:DashedLinePart pattern="[5, 5]">
            <s:SolidColorStroke color="0xFFFFFF" weight="2"/>

        <!-- The car -->
        <mk:IconPart rotate="true">
            <s:BitmapImage width="22" height="15"


Real world example.

The AdvancedLineSymbol was used for a demo using the Traffic Layer during the DevSummit 2013 plenary session.


Copyright 2012-2013 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

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.

A copy of the license is available in the repository's license.txt file.