Hello everyone, today I will answer some questions about how to draw the North Point, including the prescribed drawing method and use of the North Point, which many people still don’t know. , therefore, today I will analyze it for everyone, let us take a look together now! If your problem is solved, I hope you will pay attention to this site, thank you~
Table of contents of this article
- Standard size of the north needle
- The prescribed drawing and use of the north needle
- CAD north needle size specifications
1. North point Standard needle size
1. The north compass needle is drawn with a thin solid line, and the diameter of the circle is 24mm. The tip of the pointer is pointing north, usually marked \”North\” or \”N\”, and the width of the tail of the pointer should be 3mm. If you need to draw a compass with a larger diameter, the tail of the pointer should be 1/8 of the diameter.
2. The compass is a tool used to indicate directions and is widely used in various direction interpretations, such as navigation, outdoor exploration, and urban road map reading. and other fields. It is also an indispensable tool for mountaineering expeditions. Its basic function is to use the earth\’s magnetic field to indicate the north direction. It must cooperate with the map to find the relative position in order to understand where you are. It has the same function as a compass. The north pole of the magnetic needle points to the geographical north pole. This performance can be used to identify the indicated direction. But in some parts of the world, the compass is also called the north needle.
2. The prescribed drawing method and use of the north needle
1. ① The prescribed method of drawing the north needle: the north needle is drawn with a thin solid line, and the diameter of the circle is 24mm. The tip of the pointer is pointing north, usually marked \”North\” or \”N\”, and the width of the tail of the pointer should be 3mm. If you need to draw a compass with a larger diameter, the tail of the pointer should be 1/8 of the diameter.
2. ②The use of the north needle: The north needle is a tool used to indicate direction and is widely used in various direction interpretations, such as navigation, Wilderness adventure, urban road map reading and other fields. It is also an indispensable tool for mountaineering expeditions. Its basic function is to use the earth\’s magnetic field to indicate the north direction. It must cooperate with the map to find the relative position in order to understand where you are. it and guideThe needle has the same function. The north pole of the magnetic needle points to the geographical north pole. This performance can be used to identify the indicated direction.
3. ③ How to use the north needle: North needle zeroing operation. The north needle zeroing operation is a very important prerequisite for using the forest compass. Assignment, its steps are: 1. Place the compass horizontally. 2. Correct the magnetic deflection angle appropriately according to the local conditions. Target azimuth angle When measuring the target azimuth angle, the north of the site must be parallel to the grid north of the map, and then align the red line of the north needle with the target, read the angle between the target and the grid north, and correct the azimuth deviation angle of the map , which is the target azimuth angle.
3. CAD north needle size specifications
1. Pointer The diameter of the north needle should be 24mm and should be drawn with a thin solid line.
2. The width of the pointer tail should be 3mm, and the word \”North\” or \”N\” should be marked on the head of the pointer. When a compass needs to be drawn with a larger diameter, the width of the pointer tail should be 1/8 of the diameter.
Extended information: 1. The construction floor plan is to arrange various temporary facilities for construction services on the building plane of the proposed project (including the surrounding environment) , material component storage yard, construction machinery, etc., are the spatial manifestation of the construction plan on site. It reflects the mutual spatial relationship between existing buildings and proposed projects, and between temporary buildings and temporary facilities.
2. Construction plans generally need to be prepared in different construction stages. The general ratio is 1:200 or 1:500. The general construction layout plan is an important part of the project construction organization design (and some special construction plans). In the project bidding, it is also an important part of the technical bid.
3. The basis for drawing the general layout of the construction plan: various design materials, including the general plan of the building, topography and landforms, regional planning, and relevant information within the scope of the construction project. The location of all existing and proposed facilities; \”Technical Specifications for Fire Safety at Construction Sites\” GB50720, \”Technical Specifications for Temporary Buildings at Construction Sites\” JGJ/T188. Relevant regulations of local competent authorities and construction units on safe and civilized construction at construction sites, and standards for safe and civilized construction of construction units.
Okay, the article ends here. If the drawing method of the north needle and the prescribed drawing method and use of the north needle shared this time are helpful to you. If it helps, please pay attention to this site!
