Working with Maps - How Map Works?

We are going to show you how to work with Maps. 
Following are the point. 
1. Map basic elements 
2. Additional graphics elements 
3. Map finalization 

Map Basic element:-Definition of Map Elements. A map usually contains the following elements: Title (and subtitle): Usually draws attention by virtue of its dominant size; serves to focus attention on the primary content of the map. 

- Title the heading of a map 
- Compass a part of a map that shows the cardinal directions/other directions (north arrow). 
- Key a part of a map used to define symbols on the map and easily find the locations.
- Grid the horizontal and vertical set of lines that show coordinates values on a map. 
- Scale the part of the map used to show how big it is in actual size small and large maps adjust in required paper size. 



Additional graphics elements:- Maps are the primary tools by which spatial relationships are visualized and analyze . Maps are important documents. There are several key elements that should be included each time a map is created in order to aid the viewer in understanding the communications of that map and to document the source of the geographic information used. 
1. Data frame 
2. Legend 
3. Title 
4. North Arrow 
5. Scale 
6. Citation 
7. Grid 
8. Key map 



Map finalization:- 
- You can turn off some map layers for data that we do not need for this map. Un-check the box next to extra layers. Before we make a map suitable for printing, we need to choose an appropriate projection. This dataset comes in Geographic Coordinate System (GCS) where the units are degrees. This is not appropriate for a map where you want the distances to be in kilometers or miles. We need to use a Projected Coordinate System that minimizes distortions for our region of interest and has units in meters. Universal Transverse Mercator (UTM) is a decent choice for a projected coordinate system. It is also global, so it’s a good default that you can rely on and choose a UTM zone that contains your area of interest to minimize distortions for your region. 

- Once you are satisfied with the map, you can export it as Image, PDF or SVG. For this tutorial, let’s export it as an image. Click Composer ‣ Export as Image. 
- Save the image in the format of your liking. Below is the exported PNG image. 

At InfoTech Enterprises, We are renowned as Top LiDAR Companies in India. As a GIS, CAD, LiDAR and Photogrammetry company we offers a wide range of mapping and drafting services such for various industry verticals to 
customers worldwide. Our main services provided includes data conversion, drafting , navigation, engineering, architectural and mechanical drawings.

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Cadastral GIS of Real Value

InfoTech’s Cadastral Mapping GIS applications, while not as glamorous as GIS applications for emergency response or law enforcement, enhance the performance of the assessor's office and often provide the foundation for the development of GIS throughout a local government.

Cadastral data defines the geographic extent of the past, current, and future rights and interests in real property and the spatial information needed to describe that geographic extent. These rights and interests are contained in land record documents.

The Cadastral data for a county, known as the tax assessment role, is maintained by the county assessor's office. Assessors do not determine tax rates, nor do they collect or figure taxes-they value real property for taxation purposes. This ensures the equitable distribution of a community's tax burden.

Property taxes are the major source of revenue that allows local governments to provide community services such as fire and police protection. The quality of the work performed by this office directly impacts the financial security of a community.

Tax maps were originally drawn by hand on Mylar or linen. These maps were difficult to keep up-to-date and cumbersome to store and retrieve. Multiple copies of maps sometimes contained different or conflicting information. Tax maps maintained as part of a GIS are more easily updated, organized, and shared across departments in a local government. Parcels can be linked to data stored in a Computer Assisted Mass Appraisal (CAMA) system, a widely used system for storing tabular information on real property.

Working Better and Smarter

GIS also benefits assessors by improving the quality of valuations. More factors relating to each property can be considered when determining value. Instead of hunting through paper maps or searching CAD documents, an assessor can query and not only find the parcel immediately but also access related information that previously was kept in separate tabular databases or in filing cabinets. Square footage and acreage calculations can be performed on the fly.

"Location, location, location," the mantra of real estate agents, holds true for assessors as well. Knowing the location of the subject property in relation to factors such as flood zones or water frontage improves valuation. By querying the GIS, assessors can identify all properties with similar use codes, sizes, locations, or other features that affect value in a specified area.

GIS is also a tool for working smarter. Thematic mapping makes it easy to spot such things as disparities between selling prices and assessed values or missed assessments. Land and building values can also be analyzed by neighborhood to help identify areas of concern. Homogeneous areas can be identified so that mass appraisal techniques can be used to streamline work.

Working smarter extends to the management aspects of running an assessor's office. GIS can help manage personnel and chart work flow.

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