Knowledge

API (Application Programming Interface)

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“What’s an API?” When a new programmer asks this question, they typically get the answer, “an application programming interface.” But APIs are so much more than their name suggests—and to understand and unleash their value, we must focus on the keyword interface. An API is the interface that a software program presents to other programs, to humans, and, in the case of web APIs, to the world via the internet. An API’s design belies much about the program behind it—business model, product features, the occasional bug. Although APIs are designed to work with other programs, they’re mostly intended to be […]

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Definition of GIS

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GIS stands for Geographic Information Systems, but the “S” is increasingly being used to stand for science and studies as well. Geographic Information Science, and Geographic Information Studies are used increasingly. No universally agreed-upon definition has been put forth. Surprisingly, a number of GIS texts do not even attempt to define the term. Traditionally, GIS is a computer-based system for collecting, managing, analyzing, modeling, and presenting geographic data for a wide range of applications. Geographic Information Science, then, is the discipline that studies and uses a GIS as a tool. GIS is not simply creating maps with a computer. The

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Cartography

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Cartography has been defined by the International Cartographic Association as “the art, science and technology of making maps, together with their study as scientific documents and works of art.” It has also been defined as “the production—including design, compilation, construction, projection, reproduction, use, and distribution—of maps” (Thrower, 2008, p. 250) The term geographic cartography is frequently used to distinguish the kinds of maps that geographers use in world and regional studies to distinguish it from engineering cartography, which is used for the type of maps that city engineers create for water lines, sewer lines, gas lines, and the like that

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Mobile Application Development

By • • Knowledge, Project, Public, Research, Teaching • , , • 2 minutes of reading

Mobile computing has changed the way we learn, interact with online services, and manage information. The popularity of handheld devices among people of all ages and cultures has increased the demand for highly interactive and user-friendly mobile apps. The multitude of sensors available on mobile devices such as GPS, ambient light sensing, and accelerometers have broadened the use of mobile apps in various application domains. Mobile apps vary widely, from weather forecasting and managing a patient’s health to providing online education, among many others. Both students and lecturers of software engineering with a particular focus on mobile app development struggle

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Geocoding

By • • Knowledge, Project, Public, Research, Teaching • , , , • 2 minutes of reading

Geocoding (geographically enabling unit records) is defined as the process of finding associated geographic coordinates (expressed in latitude and longitude) from other geographic data for the statistical units, such as street addresses or postal codes. (Geocoding is a way to ensure that the data “knows” where it is.) In other words, geocoding involves taking location information for these statistical units (such as address) and linking this information to a location coordinate (i.e., x,y,z coordinates) and/or a small geographic area. The geocodes (the location coordinates and geographic areas codes) obtained from this process can be stored directly on the statistical unit record

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Finding the best locations and paths

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“A very common type of spatial analysis, and probably the one you are most familiar with, is optimization and finding the best of something. You might be looking for the best route to travel, the best path to ride a bicycle, the best corridor to build a pipeline, or the best location to site a new store. Using multiple input variables or a set of decision criteria for finding the best locations and paths can help you make more informed decisions using your spatial data. Types • Finding the best locations that satisfy a set of criteria • Finding the

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Understanding Where

By • • Knowledge, Public, Teaching • , , • 1 minute of reading

“If you don’t know where you are, you are lost. Understanding where is about putting the world in context. Where are you? What is around you? Very similar to when you were two years old, your journey of spatial analysis requires an understanding of how you fit into your geography. Understanding where includes geocoding your data, putting it on a map, and symbolizing it in ways that can help you visualize and understand your data. Within the taxonomy of spatial analysis, the first category of understanding where contains three types of questions. Types: • Understanding where things are (location maps)

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Geoblockchain

By • • Knowledge, Public, Research • , , • 1 minute of reading

“A blockchain is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. It is a ledger that records transactions in a verifiable, permanent way.” “Geography is critically important to capture in a blockchain record, which is why we are now calling this a geoblockchain.” “Adding location to the blockchain would provide enhanced security and validation because the same transaction cannot happen in two places at the same time. Use cases for blockchain being explored today include land title, supply chain, and data exchanges.

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Where My Location Data come from?

By • • Knowledge, Teaching • , , , , • 2 minutes of reading

Basically, your Browser feature -Geolocation-, will try to determine your position using one of these several ways. These list, show the ordered devices about what Geolocation will give your location. GPS (Global Positioning System)This happen for smartphone / anything which has GPS inside. If you have smartphone with GPS capabilities and set to high accuracy mode, you’ll likely to obtain the location data from this. GPS calculate location information from GPS satelite signal. It has the highest accuracy. In most Android smartphone, the accuracy can be up to 10 metres. Mobile Network LocationThis happen if you use a wireless modem

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Development of Web-Based Application for GIS Data Format Coordinate System Conversion

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By Elysonia Alim and Shahabuddin Amerudin (Supervisor) Unpublished 2018 4th Year Undergraduate Project’s Technical Paper It is difficult to process GIS vector data when they are not aligned with one another. The need for different coordinate systems rose from the fact that some coordinate systems are better fitted to describe the phenomenon happening in a specific area. The purpose of this study is to develop a web application capable of converting the coordinate system of a GIS data format such as a shapefile for Peninsular Malaysia. The web application named Coordinate Conversion Application (CCA) was developed using Django and Python

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