The Dictionary Renderer Toolkit provides documentation and tools for the creation of custom dictionary styles for use with the dictionary renderer. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.
If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Dictionary renderers allow complex symbology specifications, such as those using in military symbology, to be configured and drawn in maps. This toolkit provides resources to support modifying and creating symbol dictionaries for use with the dictionary renderer to suit your symbolization requirements.
A previous version of this toolkit allowed for creation of dictionary styles that worked with ArcGIS Pro 2. It is archived as a branch of this repository and it's recommended that dictionaries be upgraded to version 3.
See Upgrading dictionary styles from a previous version for steps to 1995 ford lt9000 wiring diagram diagram base website wiring. NET requirements. Esri welcomes contributions from anyone and everyone.
For more information, see our guidelines for contributing. Licensed under the Apache License, Version 2. You may obtain a copy of the License at:. 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.
Skip to content. Dismiss Join GitHub today GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Fix broken links. Git stats 9 commits 2 branches 0 tags. Failed to load latest commit information. Document edits, topic renames, and provide the addins. Jun 27, Updated toolkit for v3.
Feb 6, The UniqueValueRenderer class represents a unique value renderer. If you change your current renderer to the UniqueValueRendereryou first have to set the appropriate fields property value. The property is plural because you can build a set of unique values based on multiple fields.
Therefore, the fields property takes a list, even if there is only one field being used. Once you apply your fieldsthe renderer will automatically generate all the unique values.
If, for whatever reason, new values are added to the layer, you will need to reset the renderer so that all the values are added again. You can do this by changing the fields property, or you can use the addValues method. You need to understand how unique values are managed in the renderer so you can navigate through the class structure to change individual items and their values.
The groups property returns a list of ItemGroup objects. Each ItemGroup represents a category of items that each have their own heading. By default, there is one ItemGroup. The items property returns a list of Item objects.
Once you have an itemyou can change properties such as label and description. You can also modify the symbol for each item. The reason the values property is plural and returns a list is because you can also group items in an ItemGroup. Therefore, each item could have multiple values. The following is one way to outline the class structure:. You can also add and remove values from the renderer.
Each unique value is actually an item in the object model and each item is associated within an ItemGroup. To addValues or removeValuesyou need to work with a Python dictionary. The dictionary key is the name of the group heading, and its value is a list of values based on the fields property. There is also a listMissingValues method that allows you to determine what values are currently missing from the renderer.
Values would only be missing if you intentionally called removeValuesbecause—by default—the renderer automatically creates all unique values when the fields property is set. If your objective is to create new group headings to organize your unique value items, you must first call removeValues to remove the items, and then use addValues to create a new group with a new heading label.
Provides access to the ColorRamp object. A symbol that can be used as a template to update all the symbols for each class. A list of one or more fields that is used by the renderer to determine the unique set of values. A list of ItemGroup objects containing unique values. If values have not been added to the renderer, the item group count may be zero.
Returns a string that represents the renderer type. A Boolean that controls the display of un-added values. If Truethe features are displayed. A dictionary based on a key that matches the group heading name and a value that represents a list of values as strings or a list of items to be added to the group. Before executing addValuesit makes sense to first check to see if the renderer is missing any values using the listMissingValues method.
If the values you add are not valid, they will simply be ignored. It is important to reset the layer's symbology with the updated information before continuing to process other items in the renderer. Each ItemGroup has a heading and an associate set of item objects that represent the unique values. If you want to add missing items from multiple item groups back into the renderer, you'll need to call addValues multiple times, once for each heading group you want to add values into.
After executing removeValuesyou can confirm whether the values were removed by using the listMissingValues method. The following script first changes the renderer to a UniqueValueRenderer.The GraduatedSymbolsRenderer class represents the graduated symbols renderer definition that shows qualitative differences in feature values using a range of symbol sizes.
The properties behave in a similar manner to the options exposed in the application. For example, changing the number of classes will automatically adjust the break values and their labels. A symbol that represents the background symbol for the features in the layer. It only applies to polygon feature classes.
An integer that represents the number of classes to be used with the current classification method. A list of ClassBreak objects that provides access to individual properties such as label and description as well as individual symbol objects.
A string that represents a valid field name used for the layer's classification method. A string that represents a valid classification method. The valid values are as follows:. Provides access to the ColorRamp object. A double that represents a valid deviation interval that is only available if the classificationMethod is set to StandardDeviation. Valid values are 1. These are the same options available in the application. A double that represents an interval size that is only available if the classificationMethod is set to DefinedInterval.
A double that represents the size of the largest graduated symbol. A double that represents the size of the smallest graduated symbol. A string that represents a valid layer field name that is used for normalization. A specific string that represents a valid normalization key word. For example, to clear the normalization, try gradSymbols.
Returns a symbol that represents the symbol template for all the features in the layer. To set the template use the updateSymbolTemplate method.The SimpleRenderer class represents a simple renderer that draws all features in a layer with a common symbol.
The renderer in the application that uses this class is called single symbol. You can set basic properties such as label and description that can be useful for controlling how those values appear in a layout legend. This class also exposes the symbol property, which provides access to the Symbol class that allows you to modify the symbol appearance. Gets and sets the description for the simple symbol renderer. Gets and sets the label for the simple symbol renderer.
Gets and sets the symbol associated with the simple symbol renderer. Returns a string that represents the renderer type. The following script first confirms that the renderer is SimpleSymbol. It then sets the label and description properties.
It finishes by changing the symbol to match an existing symbol in a gallery saved with the project. Feedback on this topic? Skip To Content. Back to Top. Summary The SimpleRenderer class represents a simple renderer that draws all features in a layer with a common symbol. Discussion The renderer in the application that uses this class is called single symbol. Code sample SimpleRenderer example The following script first confirms that the renderer is SimpleSymbol.
ArcGISProject os. In this topic Summary Discussion Properties Code sample.This renderer uses a Gaussian Blur to determine the strength of the influence of each point over an area determined by the blurRadius. A Gaussian, or normal, distribution is used to spread the color of the point so it appears to be a fuzzy circle. The process described in the caption above is repeated for each point. Each time the calculation is performed, each pixel's intensity value will accumulate based on its proximity to multiple points.
Pixels are then colored along a continuous color ramp based on the overall intensity value assigned to each pixel. This will produce a continuous surface showing where a high density of points occur versus areas with little or no data.
If a field is specified in the renderer, the intensity values of each pixel are multiplied by the value of the specified attribute field. This gives pixels higher or lower weights depending on the values of the specified attribute at nearby point locations.
Colors are assigned to each pixel based on their intensity value. The color ramp specified by the colorStops property maps specific colors to the ratio of the pixel's intensity value to the maxPixelIntensity. This eases the process for creating your own color stops since you don't need to know the range of intensity values in your view.
The default values of the HeatmapRenderer are a good start, but they may not work well for your dataset and the message you're trying to convey. For example, the image below depicts a heatmap of earthquakes where the developer set their own colorStops, but accepted the default blurRadiusmaxPixelIntensityand minPixelIntensity. The blurRadius indicates the area of influence of each point in pixels.
By default, this value is If you zoom to a single point very closely, you can verify the blurRadius from the center of the point. As you increase the value of the blurRadiusthe overall heatmap will become larger, and appear hotter since the area of influence of each point increases.
The image below shows what the same heatmap looks like if you double the blurRadius to 20px. If you decrease the blurRadiusthe heatmap will appear colder and less dense.
20027: Layer uses advanced renderer settings
The image below shows what the same heatmap looks like with a blurRadius of 5px. By default, the maxPixelIntensity of the renderer isand the minPixelIntensity is 0. In most cases, the minPixelIntensity will not need to be altered since 0 works in most visualizations. However, it is highly likely that the maxPixelIntensity will need to be tweaked. The maxPixelIntensity sets an upper bound on which pixels will be shaded with the highest or hottest color defined in the colorStops. The lower the maxPixelIntensitythe hotter the map will look since the standard for "heat" in the map is lower and more inclusive.
Using the same example from above, if you lower the maxPixelIntensityto something like 10, you'll see the following visual. On the other hand, if you increase the maxPixelIntensity to a high number likethe heatmap will look much colder.
Increasing the minPixelIntensity essentially filters out areas with fewer points. Keep in mind that this isn't a true filter.
The data is still present in the view, so you can click it and view the popup for points even if they don't appear to be there. This is a good technique for removing excess noise in some heatmaps. The colors defined in the colorStops are mapped to the ratio of the intensity value of each pixel to the maxPixelIntensity of the renderer.
So if a pixel has an intensity value ofand the maxPixelIntensity isthe pixel will be colored with the hottest color if the ratio for that color defined in the stops is 1.
If the pixel has an intensity value of 50it will have a ratio of 0. Therefore, altering the ratios of the stops can have a similar effect as modifying the maxPixelIntensity and minPixelIntensity in making a heatmap look hotter or colder. Sample - Visualize points with a heatmap. Sample - Create a scale-dependent visualization. See the properties for a list of all the properties that may be passed into the constructor.
Authoring metadata only included in renderers generated from one of the Smart Mapping creator methods, such as sizeRendererCreator.The Renderer object contains drawing information for the layer and is the base class for all renderers. There are several types of renderers available for visualizing data.
Each serves a different purpose, allowing you to explore your data and tell a visual story about it by combining geography and statistics. Most cartographic visualizations fall into one of the following categories. In many cases, the user just wants to see where a set of features are located. Some examples might be political boundaries, cities, buildings, rivers, etc. These are scenarios where you want all features in the layer to have the same symbol.
To accomplish this you would use a SimpleRenderer. The example in the screenshot below contains three layers; each uses a SimpleRenderer to assign all features the same symbol. The polygon layer represents states with no fill and a gray outline. The polyline layer visualizes highways with bright blue lines. The point layer depicts cities as marker symbols with the same bright blue color. UniqueValueRenderer allows you to symbolize features based on one or more matching string attribute values.
Unique values are typically differentiated with colors, fill styles, or images to represent features of various types. In the image below, each line is symbolized with a different color depending on the jurisdiction to which the highway belongs. For example, green lines are highways in the "Tampa District" whereas red lines are highways in the "Central District". ClassBreaksRenderer sets the symbol of each feature in a layer based on the value of a numeric attribute.
Symbols are assigned to classes, or ranges of data. Each feature is assigned a symbol based on the class in which the value of the attribute falls. In the example below, a FeatureLayer representing block groups is rendered with a ClassBreaksRenderer. The other features are similarly rendered based on the value of the attribute of interest.The GraduatedColorsRenderer class represents the graduated color renderer definition that shows qualitative differences in feature values using a range of color.
The properties behave in a similar manner to the options exposed in the application. For example, changing the number of classes will automatically adjust the break values and their labels. An integer that represents the number of classes to be used with the current classification method. A list of ClassBreak objects that provides access to individual properties such as label and description as well as individual symbol objects.
A string that represents a valid field name used for the layer's classification method. A string that represents a valid classification method. The valid values are as follows:. Provides access to the ColorRamp object. A double that represents a valid deviation interval that is only available if classificationMethod is set to StandardDeviation. Valid values are 1.
These are the same options available in the application. A double that represents an interval size that is only available if classificationMethod is set to DefinedInterval. A string that represents a valid layer field name that is used for normalization. A specific string that represents a valid normalization key word. For example, to clear the normalization, try gradColors. Returns a string that represents the renderer type. The following script first tests if the layer's symbology supports a renderer property and then confirms if the renderer is a SimpleSymbolRenderer.
Next is changes the renderer to a GraduatedColorsRenderer and it changes the classificationField and breakCount. Finally, it changes ColorRamp to a color ramp named Cyan to Purple. The following script modifies the symbology of a polygon layer that uses a graduate color renderer.
It sets the classificationField and breakCount and iterates through each class break and modifies the upperBoundlabeldescriptionand symbol properties such as coloroutlineColorand size. The labels for each break are formatted to include thousands separators. The fill color graduates from red to blue, and the outline color goes from blue to red and increases in size with each break. Feedback on this topic?
Skip To Content. Back to Top. Summary The GraduatedColorsRenderer class represents the graduated color renderer definition that shows qualitative differences in feature values using a range of color. Discussion The properties behave in a similar manner to the options exposed in the application. Code sample GraduatedColorsRenderer example 1 The following script first tests if the layer's symbology supports a renderer property and then confirms if the renderer is a SimpleSymbolRenderer.
In this topic Summary Discussion Properties Code sample.