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Operator overloading in user-defined classes was introduced in IDL 8 through the IDL_Object class. Mike Galloy explains how to use this technique here. One somewhat overlooked feature of... Read More >

I’ve worked with a lot of different types of geospatial data in my years at ITT VIS, but one type that I’ve had relatively little experience with is LiDAR. So, when ITT VIS announced... Read More >

I’ve been using Direct Graphics (DG) in IDL since 1993. I was initially hesitant about IDL 8 Graphics (christened “New Graphics” on the comp.lang.idl-pvwave newsgroup; I’ll refer to them as NG),... Read More >

Have you seen the new images from the Lunar Reconnaissance Orbiter (LRO)?  The orbit of the LRO was recently adjusted to bring the sensor closer to the Moon than before.  You can see the... Read More >

IDL's GRIB routines are a thin layer on top of the the C version of the ECMWF GRIB API.  The ECMWF routines exposed in IDL are fairly low-level, so they require a bit of programming to extract... Read More >