Building on the code already in place for Snotel, I’m pleased to announce another real-time datasource: USGS water gauges. While it’s more of a frontcountry source than a backcountry one, streamflow information can still give you a good picture of the snowmelt situation and help determine whether rivers are easily crossable. Of course boaters use it […]
As the summer fire season approaches, I decided to take another look at integrating current fire activity with CalTopo. There’s a wealth of government supplied fire information out there, and I’ve long thought about integrating this into a custom source that plays well with CalTopo’s other map layers. When the MODIS layer I’d previously been […]
Tips for creating a line – like dropping points, freehand drawing and undo – were previously covered in this blog post. Options for modifying existing lines have slowly been growing, and I think it’s time to take a detailed look at them. All of these options are accessed by right clicking on an existing line. Vertex […]
In a move that’s been a long time coming, CalTopo now supports line styles. When creating or editing a line, there’s now a style option next to color, defaulting to solid. Click on it to choose a line style. A number of directional and nondirectional styles are provided, but if you’d like to see something […]
In the past, I’ve struggled with the balance between providing a wide range of map layers and keeping the layer list relevant for the majority of users. The approach I originally adopted was to provide a large base list and a way to customize which layers were visible on the screen. This turned out to […]
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