help set text in any area, Objetive Indicators

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You could help me, I would like to create an indicator about the world of gta sa, if you could give me an example, I thank you
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-- OBJECTIVE INDICATORS BY MADNESSRELOADED --

-- createObjectiveIndicator (x,y,z,name[,maxdistance,mindistance,r,g,b,image]) -- RETURNS ID
-- destroyObjectiveIndicator (id) -- GET THE ID RETURNED BY CREATEOBJECTIVEINDICATOR
-- drawObjectiveIndicator (x,y,z,name[,maxdistance,mindistance,r,g,b,image])
 
allzones = {
}

function round(num, numDecimalPlaces) 
  local mult = 10^(numDecimalPlaces or 0)
  return math.floor(num * mult + 0.5) / mult
end

function isPedAiming ( thePedToCheck ) --https://wiki.multitheftauto.com/wiki/IsPedAiming
    if isElement(thePedToCheck) then
        if getElementType(thePedToCheck) == "player" or getElementType(thePedToCheck) == "ped" then
            if getPedTask(thePedToCheck, "secondary", 0) == "TASK_SIMPLE_USE_GUN" then
                return true
            end
        end
    end
    return false
end

function dxDrawBordered( text, x, y, w, h, color, scale, font, ax, ay, clip, wb, postgui )
    dxDrawText ( text, x - 1.2, y - 1.2, w - 1.2, h - 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x + 1.2, y - 1.2, w + 1.2, h - 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x - 1.2, y + 1.2, w - 1.2, h + 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x + 1.2, y + 1.2, w + 1.2, h + 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x - 1.2, y, w - 1.2, h, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x + 1.2, y, w + 1.2, h, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x, y - 1.2, w, h - 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x, y + 1.2, w, h + 1.2, tocolor ( 0, 0, 0, 255 ), scale, font, ax, ay, clip, wb, false )
    dxDrawText ( text, x, y, w, h, color, scale, font, ax, ay, clip, wb, postgui )
end

function drawObjectiveIndicator (wwx,wwy,wwz,type,maxdist,lowdist,r,g,b,image)
local measure = "m"
local screenW, screenH = getScreenFromWorldPosition(wwx, wwy, wwz+1)
if not screenW then return end
local x,y,z = getElementPosition(localPlayer)
local dst = math.floor(getDistanceBetweenPoints3D (x,y,z,wwx,wwy,wwz))
    if dst< (lowdist or 50) then return end
    if dst > (maxdist or 5000) then return end
    
    dxDrawImage(screenW-16, screenH-16, 25, 25,image or "pin.png",0,0,0,tocolor (255,255,255,150))
    local wr = screenW-16
    local wu = screenH-32
    local sz =32
    local sy =32
    
    dst = math.floor(getDistanceBetweenPoints3D (x,y,z,wwx,wwy,wwz))
        if dst <100 then
        wr = screenW-16
        elseif dst > 99 and dst<1000 then
        wr = screenW-13

        elseif dst >999 then
        wr = screenW-16    
        dst = round(dst/1000,1)
        measure = "km"
        end
 dxDrawBordered (type.." ("..dst..""..measure..")",wr, wu,sz,sy+1,tocolor (r or 255,g or 255,b or 255,255),1,"sans serif","left")
end

 function createObjectiveIndicator (x,y,z,name,maxdistance,mindistance,r,g,b,image)
if not x or not y or not z then
outputDebugString ("Objective indicator position not specified.",2)
elseif not name then
outputDebugString ("Objective name not specified.",2)
return end

if not maxdistance or maxdistance == nil then
maxdistance = 5000
end

if not mindistance or mindistance == nil then
mindistance = 50
end

if not r or not g or not b then
r,g,b = 255,255,255
end

local id =  #allzones+1
table.insert (allzones, id, {x,y,z,name,maxdistance,mindistance,r,g,b,image})
return #allzones
end

function destroyObjectiveIndicator (id)
table.remove (allzones,id)
end

 addEventHandler ("onClientRender",root,function()
if isPedAiming (localPlayer) then return end
    for i,zone in ipairs (allzones) do
    x,y,z,name,maxdistance,mindistance,r,g,b,image = unpack (zone)
    drawObjectiveIndicator (x,y,z,name,maxdistance,mindistance,r,g,b,image)
    end
end)


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<meta>
<info author="MadnessReloaded" name="Objective Indicators" version="1.0" type="script"/>
<script src="client.lua" type="client" cache="false"/>
<min_mta_version client="1.5.0" server="1.4.0"/>
<file src="pin.png"/>
<export function="createObjectiveIndicator" type="client"/>
<export function="drawObjectiveIndicator" type="client"/>
<export function="removeObjectiveIndicator" type="client"/>
</meta>