Category:Dmitris Raster Studio
From fmepedia
This page accumulates links to all raster examples I created recently. As FME increases its raster transformation capabilities, the number of the scenarios on this page will grow as well. If you would like to see some raster scenario not covered by these examples, or would like to share your scenario, feel free to create your own page, or to contact me at dmitri.bagh@safe.com.
These scenarios were created and tested with FME 2009 or FME 2010.
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Raster Mosaicking Scenario
Raster Mosaicking Scenario is my favorite, most sophisticated scenario. It shows how to take data from different sources and different projections, select only necessary images, mosaic them, and re-tile to a new grid. The second part of the scenario tells how to add new images to the existing dataset updating only those tiles that are covered by the new images.
Raster Mosaicking with Alpha Compositing
An Alpha Compositing option was added to FME 2009, build 5600. It allows to weight the amount that each overlapping band contributes to each resultant pixel value. The example shows how to make a gradual transition from raster contents into white color.
VectorOnRasterOverlayer Example
VectorOnRasterOverlayer Example shows how to add vector features to a raster.
Rasterization scenario
Rasterization scenario takes a few vector layers, sets colors, sorts features in order to keep them in a certain order, and does some attribute manipulations for further rasterization.
Non-rectangular raster clipping
Non-rectangular raster clipping is a workaround for the users of FME 2008 wishing to make non-rectangular raster clipping. FME 2009 allows non-rectangular clipping with the standard Clipper transformer.
Note that this scenario does not change the raster size, it only clips the content of the original raster.
Raster collage
Raster collage shows manipulations with raster using traditional vector transformers - Scaler and Offsetter. It also demonstrates usage of RasterSubsetter and referencing non-geographic picture.
Using NODATA with RasterMosaicker
NODATA with RasterMosaicker is a simple example showing how to overlay two rasters of the same size containing some areas with no data. This scenario is based on a user support case.
PasswordGenerator
PasswordGenerator illustrates how to use alpha band for creating hidden images for web-pages (IE required).
Raster to 3D translation example
Raster to 3D example shows how to convert an image into 3D vector features.
Raster to Vector - Centerline Extraction
Raster to Vector - Centerline Extraction example for FME 2008 extracts centerlines from a Google Maps image. Check ExpressionEvaluators used as advanced Testers for selecting cells with certain colors.
Raster to Vector - Centerline Extraction. 2010 Edition performs the same operation with FME 2010 in a much simplier and efficient way.
RasterExpressionEvaluator Examples
RasterExpressionEvaluator transformer added in FME 2009. The transformer evaluates expressions on each cell in a raster, such as algebraic operations or conditional statements.
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RasterInterpretationCoercer Examples
RasterInterpretationCoercer Examples explaines in a simple way (hopefully) how RasterInterpretationCoercer conversion options work, and shows the results of RGBA to RGB type conversion.
Rasterization for Web Mapping Platforms
Rasterization for Web Mapping Platforms shows how to make raster tiles based on Bing Maps tile system for the use with different mapping platforms including Bing Maps and Google Maps.
Raster Palette Manipulations Example
Raster Palette Manipulations Example shows two simple ways how to change rasters via manipulations with external palettes.
RasterExtentsCoercer Vectorization Example
RasterExtentsCoercer Vectorization Example demonstrates how to vectorize DEM rasters into polygons
Random Chart Colorization
Random Raster Chart Colorization is an example showing how to set random colors on the image produced by Google Chart API:
Steganography with FME
Steganography with FME example shows how to hide a message within an image.
How to avoid black edges while reprojectiong rasters
How do I avoid black edges in rasters while reprojecting tells how to reproject, mosaic and clip rasters and avoid black edges that can occur during reprojection:
BrightnessContrastAdjuster Custom Transformer
BrightnessContrastAdjuster transformer uses a simple formula to change an image brightnes or contrast or both.
Raster Mask for KML output
Raster Mask and LOD (level of detail) for KML Output demonstrates how to apply raster mask to an image, and how to set LOD (Level of Detail) for KML Output.
Articles in category "Dmitris Raster Studio"
There are 21 articles in this category.
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