Bluff Series : Mastering ArcGIS 10.8.2

Digging ArcCatalog app as a catalog tool to manage and viewing spatial data before doing data spatial analysis in ArcMap app

Information that describes items in ArcGIS is called metadata. When care is taken to provide good descriptions, you can find appropriate items with a search and evaluate which of the items in your search results is the correct one to use.

In an item's metadata you can record whatever information is important for your organization to know about that item. This might include information about how accurate and recent the item is, restrictions associated with using and sharing the item, important processes in its life cycle such as generalizing features, and so on.

We will explore spatial data within ArcCatalog, even not as powerful as ArcMap, navigation tools in ArcCatalog may provide initial preview of what the data is, how it looks, how detail it is etc

Even not in ArcMap, ArcCatalog may create layer file from shapefile, this is useful to dig a litle bit about how thematic map view and place text or label there.

ArcCatalog also has ability to export/convert shapefile into other different file format. In this course we convert shp to KML and GeoJSON, two popular formats that may use in other GIS app like GoogleEarth, GoogleMap or QGIS.

Start ArcMap app and introduction and function Data View, layout view, refresh and pause drawing, add/remove status bar, status bar, rules, guide, grid (layout view), add/remove toolbars, table of content, add/remove tab arccatalog and search

Load SHP and save project (MXD), copy paste shapefilein catalo in arcmap, export data to backup, change coordinate format at status bar, brief navigation of raster (georef and ungeoref)

Navigate and analyze raster data both georeferenced and ungeoreferenced. Add georeferenced and ungeoreferenced rasters into data view in ArcMap and find the differences between them

A layer file is not a shapefile, layers file take a SHP as reference data into layer file, all settings or properties saved into a shapefile in particular MXD may save into a layer file. That layer file may be used in other MXD or new MXD by bring all properties of a SHP from previous MXD

Explore tools in ArcMap for navigating spatial data. These tools are attribute table, zoom, pan, full extent, go back, go to next, identify, select/unselect

Open MXD file in several ways such as File menu -> recent, File menu -> open, Open folder icon, Catalog inside Arcmap (drag and double click ) and open MXD from Arccatalog app

Navigate and introduce table of content icon tools for managing spatial data more conveniently. The tools are list by drawing order, list by source, list by visibility, list by selection and options

Add basemap from online source within ArcMap with add basemap dialog. Several basemaps may be added like OpenStreetMap, WorldStreet, Topography, Terrain, etc.

With attribute table open, we explore tools/icon in attribute table to understand more about it, so make us more convenient in managing spatial data. The toolbars in attribute table are select by attribute, switch selection, clear selection, zoom to selection. And the menu such as short ascending descending, advanced short, Summarize, Field calculator, calculate geometry, turn field off/on, freeze and unfreeze column, Using field aliases in properties, etc.

Create new temporary layer from selection in attribute table, close project an reopen, save selection for new layer file to make permanent

Create new layer with Select by attribute and save it to layer file, so we may use it to other MXD or to fresh new MXD

Duplicate a shp file, grouping shp layers and select certain data using query

Handling Error loading mxd When shp is missing or moved. Sometimes in a project, we have to move a shapefile into another drive or folder or rename a shp file into new name and that may affect a MXD file. We will troubleshoot this issue here.

Geographic Coordinate System (GCS) is useful for determine direction and location but not for measuring area or length. For this requirement of measuring, we need to convert this GCS into Projected Coordinate System (PCS) i.e. Universe Transverse Mercator (UTM). We’ll do conversion here, from GCS to PCS/UTM

Sometimes, we need or accidentally move shapefile from one folder/drive to another. This will affect mxd that already created contained that renamed or moved shapefiles. Mxd created with absolute path will return missing shapefiles location (red exclamation mark). to avoid this, check the pathnames to store path relatively.

Create new field in a shapefile and fill it with some data with field calculator. You may fill it entirely or just selected ones.

Create new field in a shapefile for polygon, polyline and point feature and fill them, respectively, with area measurement, line length and coordinate location.

How to change polyline color in ArcMap to create informative and beautiful map

Create thematic map with polygon, polyline, point features and labelling it .

Insert label with expression that utilize label further for more information.

Create Choropleth map that using graduation classification method to distribute numeric field graduation color from lowest value to highest value.

Learn the key differences between georeferenced and ungeoreferenced raster images in GIS.

This video explains how to identify whether a raster is spatially aligned with real-world coordinates, why georeferencing matters, and how it affects mapping and spatial analysis.

After we discussed about georef and ungeoref rasters above, now we will learn how to georeferencing rasters by using three ungeoreference rasters for this section. This rasters are coming from layouts exported and in JPEG format

We will georeference the raster that has the Decimal Degree/DD grid

We will georeference the raster that has the Degree Minutes Second/DMS grid

We will georeference the raster that has none grid information. We will georeference this raster by referring or registering some points based on two already georeferenced rasters above, or we can use vector data like a shapefile

By using OpenStreetMap/OSM via Add Basemap, we export OSM raster to locally so avoid worrying of absence of internet connection. This exported raster will be used as our digitizing training for polygon, polyline and point feature

Create a new shp with polygon feature and start digitizing spatial object on exported OSM raster locally as background

Create a new shp with polyline feature and start digitizing spatial object on exported OSM raster locally as background

Create a new shp with point feature and start digitizing spatial object on exported OSM raster locally as background

Introduction of layout tab for designing layout and tools used for creating amazing map layout

We will design layout for thematic map, setting a paper size, put layout elements, adjust them to sit properly inside design and export the maps layout to JPEG and PDF

We will design layout for choropleth map, setting a paper size, put layout elements, adjust them to sit properly inside design and export the maps layout to JPEG and PDF