Differences

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--- census:qgis_using [2025/12/19 20:53] – mlivolsi
+++ census:qgis_using [2025/12/22 19:15] (current) – [Other Data] mlivolsi
@@ Line 29: / Line 29: @@
 ==== Adding files to your project ====
   * Menu --> Layer --> Data Source Manager
+  * On the left hand menu, it should default to "Browser"
+  * On the main panel, choose the directory where your data is located (ie. /opt/qgis)
   * For each state do:
-  * Choose the file with the extension ".shp"
+    * Choose the file with the extension ".shp"
-  * Double click the file
+    * Double click the file
-==== Assigning ====
+==== Assigning Colors to Areas ====
+I want each state to have it's own color, and each region to be a gradient of that main color.
+We'll have 4 main map colors (<fc #ff0000>red</fc>/<fc #00ff00>green</fc>/<fc #4682b4>blue</fc>/<fc #ffa500>orangello</fc>)
   - In order for each PUMA region to have it’s own color,
     - right click the layer
-    - Go to Symbology
+    - Go to Properties --> Symbology
+  - On the VERY UPPER drop down, choose "Categorized"
+  - The "Value" is a field that included in the file (a long story). Choose GEOID10
+  - Click "Classify" to display all the GEOID10 values
+  - For the "Color Ramp", choose a pre-installed theme (like "Reds)
   - In the file, choose a unique value that will identify each individual region
     - (in this case, column PUMACE10)
@@ Line 43: / Line 53: @@
   - Click the “Classify” button and all the values will appear next to it’s respective color.
   - Click “OK”
+{{:census:qgis_assign_colors.png?600|}}
+===== Twisted Map =====
+If the map appears twisted, you should do the following. On the lower right, click the  box that will look like the following (ie. esri:102100). You’re value will look different
+{{:census:qgis_twisted_map.png?200|}}
+Choose WGS_1984_Web_Mercator_Auxiliary_Sphere
+===== Other Data =====
+In other articles, we'll talk about adding other layers (like you would do in Photoshop/Gimp) where data is layered. It's not all just shape files, as you can have points on a map (if you have the lat/lon coordinates) or other maps.