What is a horizontal projection area of 50

Assuming that when the sun is at its peak, the area enclosed by the shadow outer contour of the house falling on the ground is called its horizontal projection area.

Projected areaIt refers to the projected area of the building on the horizontal plane, and refers to the area enclosed by the outer contour line of the shadow projected vertically.

The actual projection area is also known as the horizontal projection area, which refers to the projected area of the object on the horizontal plane.

The projection of a building refers to the shape of a building when viewed from above.

The built-up area of a complete house.

It is composed of three parts: the usable area of the house in the suite, the wall area in the suite, and the construction area of the balcony in the suite. The projection area of the building can be seen as the usable area of the house in the complete set. Huai Xi.

Projection can be divided into front projection and back projection. The front projection means that the center line of the projected ray is perpendicular to the plane of the projection, and the image will stay on the screen, and the back projection means that the picture is reversed and passed through the object receiving the image.

There are some special rules when calculating the usable area: the indoor staircase in a duplex dwelling is counted as the sum of the area of the natural floors; Chimneys, ventilation ducts, tube wells, etc. should not be included in the usable area of the set; The thickness of the interior wall decoration is included in the usable area. Residential rents are calculated on the basis of usable area.

Projected area refers to the area covered by the projection of an object on a certain plane. The area can be two-dimensional (planar projection) or three-dimensional (three-dimensional volume projection).

In two-dimensional planar projection, the projected area of an object on a projection plane parallel to a plane is often referred to as the projected area of the object. This projection area can be calculated by projecting the object with light rays parallel to the projection plane, or by orthogonal projection after the object is perpendicular to the projection plane.

In the projection of a three-dimensional volume, the projected area of a pure three-dimensional object on a certain plane is also called the projected area. This projected area refers to the area covered by a three-dimensional object after a certain plane is projected.

The method of calculating the projected area varies depending on the shape of the object and the orientation of the projection surface. For example, in the case of a rectangular or circular object perpendicular to the projection plane, the projection area can be calculated directly from the dimensions of the object. For complex geometries, it may be necessary to calculate the projected area with the help of mathematical methods or computer simulations.

Projected areas have a wide range of applications in engineering, architecture, physics, computer graphics, and other fields. For example, in architectural design, the shadow effect of a building can be evaluated by calculating the projected area of the building at different times or under different lighting conditions. In computer graphics, the projected area can be used for applications such as rendering shadow effects and object recognition and measurement in computer vision.

The so-called horizontal projection is a de-excited rental object, which is illuminated by light in the vertical horizontal plane above the object, and the area where the object blocks the shadow formed by the light on the ground is the water and the trillion projection area.

The calculation formula depends on the shape of the projection, and the triangle is to calculate the area of the three-lead angular shape.

The same rectangle is the formula for calculating the area of the rectangle.

1. Content: vertical projection area.

From the top of the vertical projection of the object, the shadow area produced by the object rest, regardless of its angle to the horizontal plane, only the area of its vertical projection on the horizontal plane is considered; Horizontal projection areaThe projected area on the horizontal plane.

2. Mathematical calculation model: for example, if it is a horizontal projection area, that is, no matter how high the shelf is, only calculate its projection area from top to bottom (that is, the floor area); If it's a vertical projection area, that's the projection area of that shelf on the wall.

In layman's terms, it means that the horizontal projection area is from top to bottom. For example, if it is a horizontal projection area, it means that no matter how high the shelf is, just calculate its projection area from top to bottom (that is, the floor area); If it's a vertical projection area, that's the projection area of that shelf on the wall.

First of all, I'm sorry to tell you, I can't explain it to you with a picture.

First of all, let's talk about the concept of three-dimensional coordinates, x-axis, y-axis, z-axis.

The projection of an object onto the xy plane is the horizontal projection area; The projection of an object onto the xz or yz plane is the vertical projection area.

If you want to know more in detail, you can refer to "Architectural Drawing", which will tell you clearly at the beginning.

Public screens are priced according to the vertical area. The vertical projection area of the square meter, that is, the length multiplied by the height.

To put it simply, in a construction project, the area of the plane seen from top to bottom is the projected area (i.e., the floor plan in the drawing). The projected area is calculated from the outer edge of the enclosure wall (including columns) of the house.

There are still some hard and fast rules for calculating the construction area, such as a set of calculation methods for balcony overhanging eaves appendages.

1. Projected area: refers to the area enclosed by the outer contour line of the shadow.

2. Actual projection area: also known as horizontal projection area, refers to the projection area of the object on the horizontal plane.

Horizontal projection area is generally speaking, that is, from top to bottom is the horizontal projection area. For example, if it is a horizontal projection area, it means that no matter how high the shelf is, just calculate its projection area from top to bottom (that is, the floor area), and if it is a vertical projection area, it is the projection area of the shelf on the wall.

The projection produced by the projection line perpendicular to the projection surface is called orthographic projection. The projection produced by the projection line not perpendicular to the projection plane is called oblique projection. The shape and size of an object's projection are related to its position and angle relative to the projection surface.

The projection area is the projection of a certain surface or the whole to a specified surface, like a cabinet is a whole, generally its projection area is directly calculated, directly projected onto the wall on the back of the cabinet, and its projection area is measured.

The actual area is calculated according to the actual net area after the completion of the project.

The actual projection area is the actual overall projection to a specified surface to calculate the area, like a ceiling with a drop, if calculated according to the actual projection area, it is directly projected to the ground to calculate the actual area.

If you are working for someone else, it is better to calculate it by area.