﻿ Transform Templates - Images

# Transform Templates - Images

This topic discusses application of the Transform Dialog with Images on a tile field for the image.  That is equivalent to applying the Transform dialog to a table for an image and using the tile field in the table.  See the Transform Dialog and Transform Templates topics for use and for links to lists of templates for other data types for tables and use of the Transform Dialog with other components, such as Tables and Drawings.

Important:  Many tile functions are the tile equivalents of mathematical functions operating on numbers.    The examples and table illustrations in this table show the operation of numeric transforms, since those are easily visible in a table.    The tile function equivalents for tile data type fields will do the same math, but operating upon the numeric pixel values within the tile.

Images such as RGB images that utilize multiple channels have only the Channels template, allowing creation of an image that extracts one of the channels used.   Images that utilize only a single channel have many more transforms as listed below.

## Notes

Everything Math - For a handy reference to anything in mathematics, see the Wolfram MathWorld site.  Thank you, Wolfram!

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Transform Dialog

Transform Options

Transform Templates

Transform Templates - Drawings

Transform Templates - Binary

Transform Templates - Boolean

Transform Templates - Datetime

Transform Templates - Geom

Transform Templates - Text

Transform Templates - Tile

Transform: Center and Centroids

Transform: Escape Templates

Example: Two Drawings from the Same Table - Take a table with a geom field that is visualized by a drawing.  Add a second geom field to the table and create an rtree index on that field so it can be visualized by a drawing.   Copy the first drawing, paste it and adjust the pasted copy so it uses the second geom field. Demonstrate how to use the Transform dialog to show "live" modifications in the second drawing compared to the first drawing.

Example: Copy one Column into Another Column with Transform - How to use the Transform dialog to copy the contents of one column in a table into another column, but only for selected records.  Uses the Products table from the Nwind example data set.

Example: Transform Field Values using an Expression in the Transform Dialog -  How the Expressions tab of the Transform Dialog may be used to change the values of fields.   We include an example of changing the price of selected products and using two different Transform dialogs open at the same time for two different table windows.

Example: Construct JSON String using Select and Transform - Use the Select and Transform dialogs to manually construct a JSON string using values from other fields in a table. Shows how we can manipulate text to build desired contents in a field.

Example: Edit a Drawing with Transform Dialog Templates -  In this example we open a drawing and edit objects in the drawing using the Transform dialog Template tab.   Includes examples of using the Add Component button and also the Edit Query button.

Example: Use a Transform Dialog Expression to Create Buffers in a Drawing - Use the Expression tab of the Transform Dialog to create three different sizes of buffers for different lines in a drawing and then automatically create a query which does the same thing.  Includes examples of using the Add Component button and also the Edit Query button.

Example: Clip Areas with a Transform Dialog Expression - Use the Expression tab of the Transform dialog to clip areas in a drawing to fit within horizontal bounds.   Includes examples of using the Add Component button and also the Edit Query button.

Example: Smooth Lines with a Transform Dialog Expression - Use the Expression tab of the Transform dialog to make lines smoother in a drawing so that longer lines are smoothed more.  Includes examples of using the Edit Query button to show how different queries are created automatically depending on if we want to update a field or to add a new component.

Example: Transfer Options and Merge Areas - Using the Merge Areas Transform dialog template, an exploration of the difference between using Copy and Sum for transfer options.