What is a change in elevation called?
Contour Interval. change in elevation from contour line to another contour line.
How is height shown on a topographic map?
What are contour lines? Contour lines connect a series of points of equal elevation and are used to illustrate relief on a map. They show the height of ground above mean sea level (MSL) either in metres or feet, and can be drawn at any desired interval.
What are three ways height is shown on a map?
Terms in this set (6)
- How is height shown on a map ? There are 3 main methods of showing height on maps that are spot height , layer colouring and contours.
- Spot height. A point on a map with a number giving its height above sea level in metres.
- Layer colouring / layer shading.
- Triangulation pillar.
What is a topographic feature on a map?
Topographic maps are a detailed record of a land area, giving geographic positions and elevations for both natural and man-made features. They show the shape of the land the mountains, valleys, and plains by means of brown contour lines (lines of equal elevation above sea level).
How do you plan elevation?
To draw the initial baseline for the main floor,
- Using your floor plan drawings and starting at the extreme left end of any walls on this side of the house on the ground floor, measure the horizontal distance of this wall.
- Draw a faint line the same length of this wall towards the bottom left third of your page.
What is the difference between section and elevation?
The difference between Interior Elevations and Sections is that Interior Elevations start at the finished floor elevation and stop at the ceiling. Interior Elevations show individual walls in specific rooms, whereas Sections cut through floors showing multiple rooms stacked on top of each other.
What is Plan section and elevation?
A plan drawing is a drawing on a horizontal plane showing a view from above. An Elevation drawing is drawn on a vertical plane showing a vertical depiction. A section drawing is also a vertical depiction but one that cuts through space showing what lies within.
What is a section elevation?
A sectional elevation is a combination of a cross section, with elevations of other parts of the building seen beyond the section plane. Geometrically, a cross section is a horizontal orthographic projection of a building on to a vertical plane, with the vertical plane cutting through the building.
What does section view mean?
∎ A section view is a view used on a drawing to. show an area or hidden part of an object by. cutting away or removing some of that object.
What are the 7 types of section views?
6 Types of sectional views
- Full sections.
- Half sections or views.
- Offset sections or views.
- Broken out sections or broken views.
- Revolving sections or view.
- Removed sections.
Are there hidden lines in section views?
Section views do not include hidden lines. Any material cut when a section view is defined is hatched using section lines.
What symbol is used to indicate the plane where you cut an object?
The cutting plane appears edgewise as a thick dashed line called the cutting-plane line. The arrows at the ends of the cutting-plane line indicate the direction of sight for the sectional view.
What is phantom line?
Phantom lines are long-short-short-long lines most often used to show the travel or movement of an object or a part in alternate positions. It can also be used to show adjacent objects or features. Border Line.
What are alphabet lines?
The Alphabet of Lines is a list of line symbols that engineers use in technical drawings to communicate specific shapes, sizes or surfaces. The lines and symbols used in the Alphabet of Lines are universal, which means engineers around the world use and understand them.
What is section line in drawing?
Section Lining Section lines are very light. When sketching an object or part that requires a sectional view, they are drawn by eye at an angle of approximately 45 degrees, and are spaced about 1/8” apart. Since they are used to set off a section, they must be drawn with care.