Json compare in python code#

Again, ignition has some built-in functions that we can use to help us with JSON. A JSON string is simply formatted in certain way that makes it readily accessible by other systems, whereas different Python specific datatype might not be. While not necessarily a data type, JSON strings have become increasingly popular. Here, the user can actually select a color and the script will return that value instead. But when this script executes, you'll notice that it actually brings up a color picker. This function simply requires that I pass in a starting color. In addition creating color values within scripting, I can also have the user generated color value, using the function. Even though each one of these examples is passing in a different value for the color, you'll notice when I execute them all of them return the same red color. In addition to this string values, I can also pass in three integers like I have done here in this fourth example. Or even a string of RGB values like my third example here.

Json compare in python code#

I can also pass it a hex code like in my second example here. You'll notice in my first example here, I have the string red list in there which is the name of the color that I want to create.

Which returns a color value from a string value that we passed in. In this first three examples on lines 56 through 58, we can see three different examples of the function. Again, ignition has some built-in functions that make handling colors little bit easier. Colors are used to change the color of things that you see on the screen. Another datatype that you might find useful is a color. A slight change to my script where I can now add ten minutes instead of subtract them and we get the opposite output. As you may have guessed, this first date is after the second date, so when I execute the script I get a value of true.

In this example right here, I'm trying to see if my current date that I created earlier is after this second date that I'm passing in right here. In this case, I'm using the function which checks to see if the first date that I pass in is after the second date that I pass in. Other functions allows to compare date values which may be little bit easier to use, rather than these standard operators. Which we can see also corresponds to our output on the right. The second function is been passed value of negative three meaning I want to subtract three months from that date. And we can see that corresponds to the output that we got on the right. For the case of the add minutes function, I've passed at a 15, meaning I want to add 15 minutes to that date value that I passed in. Both functions expecting date value that I want to manipulate and then more change it by either a positive or negative amount depending on what type of integer I put into the function. In this example, I'm calling two different functions that both do similar things. Other built-in functions allow me to manipulate that date to become a new value that I want. The first value here corresponds to the current date and time. I can then print that current date using the print command and executing that script. In this case I'm using to create the current date. Typically, you can retrieve a date value from a component on a window but you can also create a date within scripting using one of those built-in functions. While Python has a built-in way of handling date values, we actually find that it's easier to use Ignition's built-in functions to manage these date values within scripting. Dates are an important datatype that you can manipulate within scripting.