Tag: Map Data

Dark Gray Canvas expands coverage


Our most recent map update greatly expands the large scale coverage of the Dark Gray Canvas Base and Reference layers. Europe, including Russia, was added at scales ~1:288k down to ~1:9k (levels 11 to 16). This is the first ArcGIS.com basemap … Continue reading

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Dark Gray Canvas basemap now available for your use


Just as the dark sky at night allows the stars and nebula to shine, a new basemap from Esri allows you to create exciting new maps of your data. The Dark Gray Canvas basemap is now available on our production servers … Continue reading

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A Dark Canvas for Bright People: Update


Recently we blogged about a beta service for a Dark Gray Canvas basemap, available for you to try out and comment on, prior to a full release as an Esri Basemap. That blog can be found here. The original release … Continue reading

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A Dark Canvas for Bright People


Esri has released a new Dark Gray Canvas basemap (as a beta) for its customers, partners and developers to use. Developed from the Light Gray Canvas basemap, the Dark Gray Canvas version opens up an opportunity to use a different type … Continue reading

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Using ArcGIS for sports analytics


By Damien Demaj, Cartographer The statistical component of sport has always provided a fascinating way to analyze performance and success. This might simply be the final score, but for some sports, such as football, baseball, cricket, golf and tennis, meaningful … Continue reading

Posted in 3D GIS, Analysis & Geoprocessing, Editing, Location Analytics, Mapping, Spatial Statistics, Uncategorized | Tagged , , , , , , , , , , , , | 4 Comments

Combining colored and grayshade rasters with high fidelity

By Rajinder Nagi, Esri Cartographic Product Engineer

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Have you ever noticed when you display a colored raster, such as elevation tints, transparently over a grayscale raster, such as a hillshaded surface, that you lose the intensity of your colors and that it is harder to see the hillshade details? This is a problem common to all software in which colors and grayshades are combined.

In this blog entry, we explain how you can overlay colored rasters on graytone rasters without losing detail in the graytones or intensity in the   colors. The example here uses a colormap file and mosaic dataset functions. In a related blog entry, we demonstrate the same overlay method using color ramps and Image Analysis functions. No matter how you work with your rasters, this new overlay method will allow you to retain the detail and colors in the overlaid rasters. Continue reading

Posted in Imagery, Mapping | Tagged , , , , , , , | 16 Comments

Adding demographic data from ArcGIS Online to your maps

By Jim Herries, Cartographic Product Engineer

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We got a good question the other day on Ask a Cartographer, so we thought we would share the answer here as well:

“I’m a VERY novice GISer. I work for a fire department. My Chief wants me to be able to add demographic layers to our district map, but when I look around, the maps are all “Google Earth” types or PDF files, which I can’t do anything with. Where and how do I get demographic data I can add to my map as a layer?”

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Creating a grayscale version of any ArcGIS Online basemap

By Rajinder Nagi, Esri Cartographic Product Engineer

Grayscale - thumbnail

We recently got a question on Ask a Cartographer in which Julie asked if you can create a grayscale basemap from any of the colored basemaps that you add from ArcGIS Online. One solution is to use the approach Ismael described in his blog entry Crafting Your Own Basemap Styles with Flex or Silverlight. His approach involves the use of matrices to transform RGB colors, scale RGB colors, and control hue, saturation and contrast. This approach is useful if you want to change the way the basemap is rendered when using Flex or Silverlight to serve a Web map. In this blog entry, we describe how you can “transform” a colored basemap to a grayscale one directly in ArcMap.

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Posted in Imagery, Mapping | Tagged , , , , | 12 Comments

Esri Canvas Maps part I: Author beautiful web maps with our new artisan basemap Sandwich

By Mamata Akella, Esri Design Cartographer, and Kenneth Field, Esri Research Cartographer

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Online web mapping is fast becoming the de facto format for authoring, sharing and publishing authoritative geospatial information. With the introduction of platforms such as ArcGIS.com as well as Esri’s JavaScript, Flex, and Silverlight APIs, the mechanisms to create high quality web maps are in place and provide extensive tools for the design and production of great online content. As several members of the Mapping Center team played a significant role in the design and production of this map, we would like to begin telling you about the new Esri Canvas Maps. In the first of two blog entries we share with you the idea behind Canvas Maps: a new set of online basemaps specifically designed to give users a neutral ‘canvas’ on which to better display data. Here, we explain the philosophy behind the cartographic design of the Canvas Maps. In Part II we will illustrate some specific ways in which you can use the new Canvas Maps effectively.

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Symbolizing ETOPO1 data

By Aileen Buckley, Mapping Center Lead

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In a previous blog entry, Using ETOPO1 data, we explained how you can download and process ETOPO1 world elevation and bathymetry data for use in ArcGIS. In this blog entry, we explain how you can quickly and easily symbolize the data – with beautiful results! Continue reading

Posted in Imagery, Mapping | Tagged , | 22 Comments