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Symbology Tricks

Symbology Tricks . Standardizing your basedata so you can focus on your map’s main purpose. Symbolizing a feature.

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Symbology Tricks

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  1. Symbology Tricks Standardizing your basedata so you can focus on your map’s main purpose

  2. Symbolizing a feature • “The layer file stores symbology, symbology classifications, labeling properties, scale dependency and definition. A layer file does not contain any geographic data. It acts as a pointer to a data set's physical location.” (ESRi website)

  3. Why create a lyr file? • Designing how to display data CAN be a very personal, time-consuming task • Once you’ve decided that you like the symbology, it would be a shame to lose that work. • LYRs enable you to store the symbology you’ve just designed for use at a later date

  4. How do you create a lyr file? • Right click on the dataset in the Table of Contents in ArcMap • Click “Save as LYR file” • That’s it!

  5. Mary’s LYR preferences: • Unless a .lyr file is created for a particular project, I like to save all my lyrs in one directory tree, NOT WITH THE DATASET. • If I have 2 standard ways of displaying the same data, I create 2 lyr files and incorporate a description into that filename. • EX: Simple_TRIM_Water.lyr • EX: TrimDetailedWaterLineFeatures.lyr

  6. Group .LYR’s • A single LYR can be created to save how several layers are symbolized. • This is particularly useful once you’ve created symbology for base features that are used in MANY maps (TRIM Roads, Water, Contours)

  7. How to apply an lyr to a dataset in your map? • Double click on the dataset’s name in the Table of Contents (or Right Click  Properties) • On the SYMBOLOGY tab, select IMPORT at the top • Select “import from another layer or from a layer file” • Browse to the .lyr file’s location.

  8. How can .lyr files make your ArcGIS-life easier? • Instead of adding the dataset to your Table of Contents, add the lyr file. Your data will come in properly symbolized. • Group layers that are often drawn together and create a .lyr file from that Layer Group – An instant start to your mapping project each time.

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