In January, there were two new lines, one was the Foping Giant Panda Reserve and the other was “Heaven†to Taibai. As it happens, there are 1:50000 maps in this area in their hands, and compared with self-made GE maps, they feel that they have their own advantages. They should not superstition large-scale maps.
1. Accuracy of positioning
After the military map and the ge map are vectorized at the same time, the current position of the map marked with gps+ozi is basically reached the map requirement. The military map has no obvious advantage, but it seems that the deviation is slightly larger.
2. Elevation and contours
In individual locations (but in fact very few), GE has found that there is a large elevation deviation (such as 100-200 meters), while the 1:50000 map control point elevation and actual altitude deviation is relatively common. Measuring altitude is more difficult than setting the latitude and longitude. The lower version of the map is limited due to technology. The defects in this area are relatively large.
“It is extremely difficult to draw complex and accurate mountain maps with large scales. In fact, the contours of many large-scale maps use simple interpolation methods and there is no essential difference between relatively small maps.†Map practitioners
Personal understanding, a very detailed description of the mountainous terrain [such as 10-20 meters] may be required for traditional positioning and orientation skills, and this skill has been completely replaced by GPS. Too large scale maps, even though they are accurate, often do not make much sense to walkers.
3. Geographical names and topography
Do not superstition the landmarks and place names on the map. When you communicate with the fellow villagers in the field, you will find that there are still many mistakes in military maps.
In addition, some important canyons, cliffs, and waterfalls, for example, are difficult to determine from aerial photographs and computer-generated terrain data if they are not physically verified. Therefore, this is also the part where there are many large map defects.
4. Timeliness and technological advancement
Some of the roads have already been abandoned, and some places where there are important mountain roads are not marked. The construction of the motherland is changing with each passing day. New roads, buildings and landscapes cannot be displayed on large-scale maps in time.
Many large-scale maps are 50-60 editions, and the new ones are usually 80 editions. Especially if there are complex mountainous areas, they must be kept in mind when they are used.
5. Each has its own characteristics
The traditional maps express the original geographic information by means of mapping and abstraction, including the artificial understanding and interpretation of data. Most of them may be accurate, but mistakes are inevitable. Older versions of older maps were particularly so because of time and technology limitations.
GE's data is more of the original terrain and landform data that have been processed automatically. The abstraction data is relatively limited, but the human element is relatively small and requires personal interpretation and annotation.
Rationality needs emotional replenishment, and intuition requires abstract sublimation. If possible, we can use “judgment and reflection†to combine “GE and large-scale mapsâ€.
Jia Teng Glass Bottle is can be used for Soft Drinking. It made of high borosilicate glass without BPA, Lead & Mercury and purely hand-blown. It can withstand a wide range of temperature from-30℃to 530℃ without changing its shape or cracking. Some glass bottle have the same appearance as ours, but actually it is made by cheap ordinary glass, please understand it. Jia Teng Glass Bottle is finely designed with its simplistic appearance
BPA FREE and food-safe, you can feel relax when drinking.
New item includes Nylon sleeve which can protect the body and make it easy to carry while traveling with its strap. It is suitable for all occasions. If you enjoy drinking everything in glass and longed for the perfect Glass Water Bottle.
Take the Jia Teng Glass Bottle and enjoy the happy life with your families!
Glass Bottle
Glass Bottle,Glass Bottle Art,Empty Glass Bottle,Wine Glass Bottle
Hejian Jia Teng Glass Products Co., Ltd. , http://www.jtglassware.com