Requirements of mapping eps software for computer configuration

Whether it is CAD and CASS used in surveying and mapping engineering, geographic information software such as Arcgis and Envi, or photogrammetry software such as EPS, the requirements for CPU are relatively high.

For CAD/CASS, the higher the main frequency of notebook CPU, the better the performance and the smoother the CAD operation, especially for some projects with large drawings and large amount of calculation. The higher the CPU frequency, the faster the real-time response speed of CAD/CASS drawing and marking.

For me, the higher the main frequency of the notebook CPU, the better the performance of Arcgis and the smoother the operation, especially some data.

For Arcgis, Envi and other geographic information and remote sensing image software, it also depends on the computing power of CPU. The higher the CPU frequency (above 2.2GHZ) and the more cores (above 4 cores), the faster the operation speed of the above software will be.

Ordinary survey data does not require high CPU, but for photogrammetry or aerial survey data processing, these data volumes are relatively large. If the CPU frequency is low, the software will be stuck, so the CPU frequency must be high enough.

Secondly, the more CPU cores, the faster Arcgis can generate 3D terrain (rendering speed).

To sum up, for surveying and mapping engineering software used by geographic information specialty, as well as geographic information and remote sensing image software,

It is suggested to choose a standard CPU with CPU frequency above 2.4ghz and core frequency above 4.2ghz, with 4-6 cores and 8 cores if possible.

Second, the graphics card.

In surveying and mapping engineering, what I eat most is processing 3D models and making maps. If it is used for drawing, programming and writing code of CAD/CASS, the requirements for graphics cards are not high. You can use an integrated graphics card (thin and light). To do 3D modeling, you must have a high-profile independent graphics card (game book).

In 3D modeling, the graphics card determines the software response speed when rotating the view. The higher the memory and bit width of the graphics card, the newer the graphics card chip, and the faster the 3D model generation speed and view switching. Generally, a single display with a bit width greater than 128bit is selected, and the chips are the latest 30-series and 20-series graphics cards.

Suggestions on graphics card selection:

1. If the daily drawing is based on CAD/CASS/EPS, and C, C++, Python and other programming codes are written, then the requirements for the graphics card are not high, and the integrated graphics card, that is, the thin graphics card, is enough.

2. If 3D modeling, topographic mapping and remote sensing image processing are involved, and remote sensing software such as Envi and Erdas are used, but the data volume is not large or the area is small and the resolution is low, then a single monitor above 4G can be selected. The graphics chip is the latest 30-series or 20-series graphics card. Such as 1650/2060/3060, etc.

3. If the image resolution of GIS is very high, and the remote sensing image data is large and the area is wide, it is suggested to choose a desktop computer, which can no longer meet such a large-scale geographic information project.

Tip: Ordinary university majors will not be exposed to particularly complicated projects, and only experienced surveying and mapping workers will encounter highly complicated surveying and mapping projects. Therefore, university civil engineering majors don't need to buy desktops and notebooks, and they don't need to buy anything particularly expensive. The game of buying a unique monitor for more than four or five thousand yuan is completely enough.

Third, memory:

The larger the memory of a notebook computer, the smoother it will be for software such as CAD, CASS and EPS to open large files.

Secondly, when there are many middle layers of Arcgis, Envi and other software, when there are multiple surveying and mapping software running synchronously, the larger the memory, the smoother the operation, and the less likely it is to get stuck.

Finally, it needs a lot of memory (loading maps, materials, etc. ) to generate three-dimensional topographic map. If the memory is not good, it will reduce the performance of CPU. Eventually, 3D rendering will be very slow.

For surveying and mapping engineering specialty, it is suggested to start with 8G memory. For 3D images, it is recommended to start with 16G, and increase it to 32G if the budget is sufficient.

In addition to memory capacity, we should also pay attention to memory speed, which is related to the number of memory channels and memory frequency.

If the memory module is dual-channel (for example, 8G*2), the performance will be greatly improved, and ordinary rendering is basically stress-free.

The memory frequency is as high as 2933Mhz, or 3200Mhz is high-frequency memory, so the memory speed will be faster.

Fourth, the hard disk:

Surveying and mapping engineering majors need to install surveying and mapping and geography software such as CAD, CASS, ArcGIS, Envi and EPS, and programming software such as VC++, VS and MATLAB.

Some of these softwares are very large, and a single software has several gigabytes. If all the software is installed, it will take up a lot of space, at least 150G. Most software is installed on SSD, so the capacity of SSD must be large enough. If the capacity of SSD is small, it will also cause various troubles in software installation and operation.

① The capacity of solid-state hard disk is usually 128G, 256G, 5 12G, 1TB, and the larger the capacity, the better. For the major of Surveying and Mapping Engineering, it is suggested to choose the solid state above 5 12G, which is enough to meet the requirements of installing professional software. For more complex photogrammetry and remote sensing image processing, 1TB solid state can be selected.

Geographic information science majors should not only pay attention to hard disk capacity, but also pay attention to hard disk speed.

② The speed of hard disk is related to the type of hard disk, including mechanical hard disk and solid state hard disk. Solid-state hard disks are divided into ordinary SSD, NVMe protocol solid state and PCI-E solid state.

Generally, solid state hard disk (SSD) is much faster than mechanical hard disk. In SSD, the solid-state speed of PEI-E is faster than that of ordinary SSD, and the solid-state speed of NVMe protocol is faster than that of PCI-E. ..

Therefore, NVMe protocol solid state or PCI-E solid state can be selected.

Verb (abbreviation for verb) screen:

Surveying and mapping engineering major, mainly investigating the color gamut, material and resolution of the screen.

When watching renderings, the screen resolution directly affects the picture quality. The higher the resolution, the richer the picture details and the better the picture quality. It is recommended to choose a high-resolution screen above 1080P, and even better, there are ultra-high-resolution screens such as 2K, 2.5K and 3.2K.

In terms of color gamut, it is not recommended to use TN notebook screen with low color gamut. The color cast is too serious, and the notebook screen with serious color cast will seriously affect your color judgment of the renderings.

Suggested selection: the screen color gamut meets one of 72%NTSC or SRGB 100%, and the screen material is IPS screen.

In terms of screen size, it is not recommended to choose a screen that is too small, such as 13 inch, or your eyes will be tired after painting for a long time. It is recommended to choose the large screen of 14. Inches or more 15.6 inches.

Interface of intransitive verbs:

Surveying and mapping engineering majors usually need to transfer or copy data, papers and so on. With USB flash drive and mobile hard disk, the interface of notebook is very important.

Be sure to choose a notebook with more USB3.0 interfaces, and it is best to meet more than three USB interfaces. The more USB interfaces, the more convenient it is to connect peripherals such as USB flash drive, mobile hard disk, printer, hand-drawn board and camera.

Secondly, it is better for the notebook to have an HDMI interface or a DP interface, which is the interface for connecting the display. It is convenient to connect multiple monitors externally, because surveying and mapping engineering majors sometimes need dual-screen or multi-screen display images.

Finally, network interface, earphone, power interface and Type-C interface are also necessary interfaces for notebooks.

Seven, heat dissipation:

When notebook is used for drawing, programming and writing code in CAD and CASS, the calorific value is not too great, but when 3D topographic maps of ArcGIS, Envi and Erdas are used for remote sensing image processing, the calorific value is very great. If the notebook's heat dissipation performance is not good, even if the CPU and graphics card configuration is high, it will not play a very high role, which will cause the software such as ArcGIS and Envi to get stuck.

Therefore, for surveying and mapping engineering majors, the heat dissipation capacity of notebooks must be good.

Heat dissipation is related to the number of fans, heat pipes and air outlets. The number of fans has an effect on refrigeration. Generally, dual-fan notebooks are better than single-fan notebooks.

The number of heat pipes and air outlets plays a role in heat conduction. The more heat pipes and air outlets, the better the heat dissipation effect. Generally, notebooks with more than three heat pipes and more than three air outlets have stronger heat dissipation ability.

Eight, brand choice:

If you are mainly engaged in two-dimensional drawing and mainly use CAD, CASS and other software, you can choose an Apple notebook. Apple system is compatible with these two-dimensional design software.

If you are doing 3D modeling and geographic information processing, it is not recommended to buy Apple book, because Apple's MAC system has poor compatibility with geographic information software such as Arcgis, Supermap and Mapgis, and various unexpected problems will occur when installing or running the software.

It is recommended to choose notebooks with Win systems such as Lenovo, Hewlett-Packard, Asus, Dell, Raytheon and Shenzhou.