What is the difference between profile and cross-section?
A profile represents a straight line through the point cloud between two points, which gives as result the 3D representation of the point cloud along that line. A cross section represents a perpendicular line on a path, which gives as result the 3D representation of the point cloud along that section.
What is a cross profile?
The cross profile of a river shows how the width and depth of the river valley and channel change as you travel downstream. Near the source of a river there is more vertical erosion as the river flows downhill, using its energy to overcome friction (A).
What is the main purpose of a cross-sectional plan?
The purpose of the A-A cross section is to show the basic shell of the house, the structural posts holding up the roof beam, the rough opening height of the windows and ceiling heights, including a lowered ceiling in the entrance.
What is the meaning of cross-sectional area?
The cross-sectional area is the area of a two-dimensional shape that is obtained when a three-dimensional object ? such as a cylinder ? is sliced perpendicular to some specified axis at a point. For example, the cross-section of a cylinder ? when sliced parallel to its base ? is a circle.
What is Profile levelling?
Profile levelling is the process of levelling along a fixed line to determine the elevations of the ground surface along the line. Profile levelling is also known as longitudinal sectioning. Use of profile levelling: The ground profile shows the elevations of the ground along the section.
What is Rise and Fall method?
Rise and Fall Method is the method of calculating the difference in elevation between consecutive points in levelling work. Some of the points you have to know before starting numerical are: Back sights: The first reading after seeing the instrument is called back sights.
What is the difference between a long profile and a cross profile?
The average flow velocity of a river increases along its long profile. This is only the average velocity however; a cross-section of a river shows that the velocity varies from one side to the other.
What is the long profile?
The long profile of a river shows changes in the height (altitude) of the course of a river from its source to its mouth. A long profile is usually concave and the slope becomes more gentle towards the mouth of the river. Long profiles usually have irregularities such as waterfalls or lakes.
How do you create a cross section?
Making a Cross-Section
Take a thin strip of paper and place it along the cross-section line. Take that strip of paper and put it on a fresh piece of paper. Draw dots corresponding to the elevations along the strip of paper representing the cross-section line. Draw a smooth line connecting the dots.
Which is an example of a cross sectional profile?
Cross-sectional profile A graphic representation of the sections that are in a linear work, on cutting the axis of the aforementioned work with vertical planes perpendicular to it and defining the trace in elevation. In such profiles, the gradient, the land, the slopes, the levelled areas and the embankments are represented.
Which is the best definition of a cross sectional study?
Definition: A cross-sectional study is defined as a type of observational research that analyzes data of variables collected at one given point in time across a sample population or a pre-defined subset. This study type is also known as cross-sectional analysis, transverse study, or prevalence study. Although cross-sectional research does not ?
How is cross sectional data used in business?
In retail, cross-sectional data plays a significant role. It can study the expenditure trend of males and females of any age group. In business, cross-sectional data can be used to study the response to a single change from people coming from different socio-economic status from a specific geographical section.
What?s the difference between cross section and profile levelling?
Cross sectioning levelling is another method in profile levelling. The term cross-section generally refers to a relatively short profile view of the ground, which is drawn perpendicular to the route centerline of a highway or other types of linear projects.
What is the difference between project and app in Django?
4 Answers. A project refers to the entire application and all its parts. An app refers to a submodule of the project. It?s self-sufficient and not intertwined with the other apps in the project such that, in theory, you could pick it up and plop it down into another project without any modification.
Is it necessary to create an app in Django?
Both sources agree that you should create a separate app in the following situations: If you plan to reuse your app in another Django project (especially if you plan to publish it for others to reuse). If the app has few or no dependencies between it and another app.
What is Django app Mcq?
Django app is a python package with its own components.
How many apps can a Django project have?
Django comes with six built-in apps that we can examine.
What is Django written in?
Django is an extremely popular and fully featured server-side web framework, written in Python. This module shows you why Django is one of the most popular web server frameworks, how to set up a development environment, and how to start using it to create your own web applications.
Can I use Django offline?
If you need to perform an offline installation of Django: Download a Django release on a machine with internet connection from https://github.com/django/django/releases. Transfer the downloaded files to the offline PC. Install pytz: pip install pytz-2017.3-py2.
What?s the difference between a project and an app in Django?
A project is a web application using Django. There is only ever one project and many ?apps? within it. So for our blog web application, we need to create it and assign a name like config. Note I?ve add the optional period . at the end of the command so the files are included in the current directory.
How do I create an app in Django?
To create your app, make sure you?re in the same directory as manage.py and type this command: That?ll create a directory polls, which is laid out like this: This directory structure will house the poll application. Let?s write the first view.
What is the name of the registry in Django?
Django contains a registry of installed applications that stores configuration and provides introspection. It also maintains a list of available models. This registry is called apps and it?s available in django.apps: >>> from django.apps import apps >>> apps.get_app_config(?admin?).verbose_name ?Administration?
What does appconfig.name mean in Django?
The AppConfig.name attribute tells Django which application this configuration applies to. You can define any other attribute documented in the AppConfig API reference. AppConfig subclasses may be defined anywhere.