Online English Summarizer tool, free and accurate!
The vector data model uses the geometric objects of point, line, and polygon to represent spatial features.Section 4.1 covers the basic elements of raster data including cell value, cell size, cell depth, bands, and spatial reference.Although ideal for discrete features with well-defined locations and shapes, the vector data model does not work well with spatial phenomena that vary continuously over the space such as precipitation, elevation, and soil erosion.They include digital elevation data, satellite images, digital orthophotos, scanned maps, and graphic files.Commercial GIS packages can display raster and vector data simultaneously, and can easily convert between these two types of data.The value in each grid cell corresponds to the characteristic of a spatial phenomenon at the cell location.A wide variety of data used in GIS are encoded in raster format.And Section 4.6 discusses data conversion and integration of raster and vector data.In many ways, raster and vector data complement each other.
The vector data model uses the geometric objects of point, line, and polygon to represent spatial features. Although ideal for discrete features with well-defined locations and shapes, the vector data model does not work well with spatial phenomena that vary continuously over the space such as precipitation, elevation, and soil erosion. A better option for representing continuous phenomena is the raster data model, also called the field-based model. The raster data model uses a regular grid to cover the space. The value in each grid cell corresponds to the characteristic of a spatial phenomenon at the cell location. And the changes in the cell value reflect the spatial variation of the phenomenon. Unlike the vector data model, the raster data model has not changed in terms of its concept for the past four decades. Research on the raster data model has instead concentrated on data structure and data compression. A wide variety of data used in GIS are encoded in raster format. They include digital elevation data, satellite images, digital orthophotos, scanned maps, and graphic files. Raster data tend to require large amounts of the computer memory. Therefore, issues of data storage and retrieval are important to raster data users. Commercial GIS packages can display raster and vector data simultaneously, and can easily convert between these two types of data. In many ways, raster and vector data complement each other. Integration of these two types of data has therefore become a common and desirable feature in a GIS project. Chapter 4 is divided into the following six sections. Section 4.1 covers the basic elements of raster data including cell value, cell size, cell depth, bands, and spatial reference. Section 4.2 presents different types of raster data. Section 4.3 describes three different raster data structures. Section 4.4 focuses on data compression methods. Section 4.5 presents different raster data file formats. And Section 4.6 discusses data conversion and integration of raster and vector data.
Summarize English and Arabic text using the statistical algorithm and sorting sentences based on its importance
You can download the summary result with one of any available formats such as PDF,DOCX and TXT
ٌYou can share the summary link easily, we keep the summary on the website for future reference,except for private summaries.
We are working on adding new features to make summarization more easy and accurate
1-Les facteurs abiotiques 1-1-Les facteurs climatiques Le climat joue un rôle fondamental dans la di...
هي تقوم على القيم النسبية فالوسيلة و الأساس فيها ما هو محدد في بيئتها المحدودة، فهي مفهوم تنظيمي قان...
حياته إجمالا : ولد الماوردي في البصرة وبها نشأ وإليها ينسب ، وفيها تلقى العلم في الصغر ثم رحل إلى ب...
يمنع وضع الأيدي أو الكؤوس أو المغارف القذرة في الماء، وتستخدم كأس بيد طويلة لأخذ الماء من الوعاء . ...
أكسجة الدم: الشرايين: تحمل عمومًا الدم المؤكسج بعيدًا عن القلب إلى أجزاء مختلفة من الجسم. ومع ذلك، ه...
The study of history provides many benefits. First, we learn from the past. We may repeat T mistakes...
لا شك أن هناك العديد من الأسباب شكلت عقبات أمام تفسير الظواهر النفسية تفسيراً فسيولوجياً وعسرت من أم...
لما تعاظم أمر النبيّ -صلى الله عليه وسلم- من إقبال قريش بشكل خاص والعرب بشكل عام على النبي والإسلام،...
أن العالم قد شهد نوعاً جديداً من سباق التسلح ، فإن لهذه الحرب نصيب كبير من التطور التكنولوجي، وأصبح ...
في إحدى قرى الريف البسيطة، عاش فتى صغير يُدعى "أحمد". منذ صغره، كان أحمد يتمتع بخيال واسع وحب للمغام...
Biology, chemistry, physics, and mathematics are all combined in the multidisciplinary subject of en...
حسن التفكير حسن التفكير من أهم القضايا التي يرتكز على الفكر، ولقد جاءت الشريعة الإسلامية بالتحذير ب...