Geometric difference between equal-area and conformal projection
Hiking & ActivitiesConformal projections preserve angles locally, so the shapes of features appear true. But the cost of this quality is the distortion of areas and distances. Equal area projections preserve area, at the expense of angles, so the shapes of some places appear skewed. What is the difference between equal area projection and conformal projection? For
QGIS 2.12.3 Crashes on buffering line vectors
Hiking & ActivitiesWhy does QGIS keep crashing? Create a new, clean profile (under Settings / User Profiles ). You will lose and/or have to recreate certain default settings, but fairly often QGIS crashes are caused by something (internal to QGIS, a plugin?) corrupting your user profile. How do you buffer a line in QGIS? Note that in
Generating Values in Attribute Table using ArcGIS Desktop
Hiking & ActivitiesHow do I add values to an attribute table in Arcgis? Right-click the table or layer in the table of contents and choose Open Attribute Table. You can navigate the cells in a table by pressing the TAB or arrow keys on your keyboard. Click a cell in the last empty record and type a
How can I dissolve adjacent polygons based on minimum attribute value?
Hiking & ActivitiesHow do you dissolve adjacent polygons in ArcGIS? In ArcGIS, you can access the Dissolve Tool through the Data Management Tools in the Generalization Toolset. The main option is setting the field(s) in which you want to dissolve. By selecting any statistics, you can summarize values such as by sum, mean, minimum, or maximum. How
Column fields that are part of a join convert to null or 0 when exported
Hiking & ActivitiesWhy does the attribute table have null or empty values after a join? After performing a join, the values in the fields from the joined table might appear empty or null. Null values can be the result of several factors: Values in the specified fields for the join do not match. Joins are case sensitive,
How to Convert labels to Annotation
Hiking & ActivitiesHow do I turn labels into annotations? To convert labels from one layer, right-click the layer in the ArcMap table of contents. To convert labels from more than one layer, right-click the data frame. Click Convert Labels to Annotation. For Store Annotation, click In a database. How do I convert labels to annotations in ArcMap?